Determine the name for each of the ionic compounds from their formulas.

Be(NO₂)₂

NiPO4

Answers

Answer 1

Answer:

To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.

Explanation:


Related Questions

the half life of radioactive iodine 137 is 8 days. how many iodine nucei are necessary to produce an activity of 1.0 micro Ci?

Answers

The half life of radioactive iodine 137 is 8 days 0.0866 iodine nuclei are necessary to produce an activity of 1.0 micro Ci

Here given data is half life of radioactive iodine 137 = 8days

Activity of iodine is = 1.0micro Ci

Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation and the material containing unstable nuclei is considered radioactive

The interconnection between the decay constant and half-life of any sample can be given by the expression are

T1/2 = (0.693/R); T1/2 = 8

8 = 0.693/R;  R=0.0866 R=0.693×1.0/t1/2 = 0.0866

0.0866 iodine nuclei are necessary to produce an activity of 1.0 micro Ci

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Chloroform has a density of 1.48 g/mL. What is the
mass of 0.503 L of chloroform in g? Round your final
answer to the ones place.

Answers

Answer: 744 g

Explanation:

1 L=1000 ml

1.48 g/ml=

1.48*1000 g/L=1480 g/L

1480 g/L * 0.503 L=

744.44=744 g

Why does the ducks have flat beaks ?why does the ducks have flat beaks ?

Answers

“Ducks have flat beaks because they find their foods in water and ponds. So their flat beaks help them to spoon up the muddy water leaving just the insects, worms and water plants behind for them to eat. A duck’s flat beak helps them effectively hunt and gather food.”

(01.05 LC)
Which of the following is a sign a chemical reaction has occurred? (4 points)
Select one:
O
a.A solid dissolves in a liquid.
b.A solid forms when two liquids are mixed.
c.A solid melts to a liquid when it is heated.
d.A solid metal changes shape.
(01.05 LC)
When heat energy is added, two changes are

Answers

Answer:

it is A trust me I know thank you

a solid dissolves in liquid because that makes most sense to me

How many moles of iron(III) oxide will be produced from 30.2 g of oxygen reacting with excess iron?
(Balanced Equation): 4Fe + 3O2 —> 2Fe2O3

Answers

Answer:

3 mol

Explanation:

According to the balanced chemical equation, on the macroscopic scale, 1 mol of Fe2O3 F e 2 O 3 reacts with 3 mol of CO .

What does direct and inverse relationship mean

Direct relationship- ???

Inverse relationship-???

Answers

Direct relationship means increase in one variable leads to increase in other variable and vice-versa. inverse relationship means  increase in one variable leads to decrease in other variable.

Direct relation defined as when both the variables decreases together or both the variables increases together.

On graph , let one variable is x and other is y , So  x increases when y increases or x decreases when y decreases. direct relationship on graph has positive slope.

Mathematically expressed as y = kx   ( k is constant)

Inverse relationship defines as when one variable increases while other decrease or when one variable decreases while other increases. inverse relationship has negative slope on graph.    

Mathematically expressed as y = k/x

Thus,Direct relationship means increase in one variable leads to increase in other variable and vice-versa. inverse relationship means  increase in one variable increases it leads to decrease in other variable.

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176.5 cm to meters express your answer to four significant figures and include the appropriate units

Answers

Answer:

17,650 m

Explanation:

100 cm = 1m so, 176.5 × 100 = 17,650m

A chemist wants to make 5,748 mL of a solution with a concentration of 2.55 M.
How many liters of a 10.40 M solution should be used to make this solution?

Answers

1409.36ml

chemist wants to make 5,748 mL of a solution with a concentration of 2.55 M. How many liters of a 10.40 M solution should be used to make this solution

from the above statement, we have got

[tex]M_1[/tex]= 2.55 M.                    [tex]M_2[/tex]=10.40 M

[tex]V_1[/tex]=  5,748 mL                     [tex]V_2[/tex]=?

now, from the formula,

[tex]M_1V_1=M_2V_2[/tex], In this M is molarity and V is Volume

now put the values in the equation,

2.55×5748=10.40×[tex]v_2[/tex]

[tex]V_2[/tex] = 2.55×5748÷10.40

[tex]V_2[/tex]= 14,657.4÷10.40

[tex]V_2[/tex]=1409.36ml

.The number of moles of solute dissolved in one liter of solution is known as the molarity, which is the concentration of a solution. it's unit is mole per litre. it is temperature dependent concentration.

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State the charge on an electron
-1
0
+1

Answers

Answer:

an electron charge is -1

Which properties cause chemical reactions?

Answers

Answer:

reactivity, flammability and the ability to rust

Explanation:

reactivity is the ability of matter to react chemically with other substances

flammability is the ability of matter to burn

Calculate the formula mass of the molecule from its structure.

formula mass: __________ amu

Answers

The molecular formula of the given structure is C₁₀H₁₃N₅O₄ and its formula mass is 267 amu.

A molecule's formula mass (also known as formula weight) is the sum of the atomic weights of the atoms in the compound's empirical formula. The formula mass is expressed in atomic mass units (amu).

From the structure of the molecule, we can easily identify the molecular formula of the structure:

Therefore, the molecular formula of the given structure is C₁₀H₁₃N₅O₄.

Now,

Mass of Carbon = 12.011 u

                            = 10 × 12.011 u

                           = 120.11 u

Mass of Hydrogen = 1.00784 u

                              = 13 × 1.00784 u

                             = 13.10192 u

Mass of Nitrogen = 14.0067 u

                            = 5 × 14.0067 u

                            = 70.0335 u

Mass of Oxygen = 15.999 u

                           = 4 × 15.999 u

                           = 63.996 u

Formula mass of C₁₀H₁₃N₅O₄ = 120.11  + 13.10192 + 70.0335 + 63.996

                                                = 267.24142 u

Thus, the formula mass of the given structure i.e., C₁₀H₁₃N₅O₄ is 267.24142 u

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A contest asks entrants to guess how many tennis balls can fit in a rectangular swimming pool that is 4 feet deep. The pool is 98 feet long and 35 feet across. Each tennis ball takes up 8 cubic inches of space. Which of the following would make the best scale model of the pool?

Answers

So the total volume is 1035 cubic meters. A tennis ball, according to the International Tennis Federation (ITF), has the official diameter of 6.54–6.86 cm.

What is International Tennis Federation?

The International Tennis Federation (ITF) is the organization in charge of wheelchair tennis, beach tennis, and international tennis. The International Lawn Tennis Federation was established in 1913 by twelve national tennis associations. The ITF has 211 national associations and six regional associations as of 2016.

The ITF's governance duties include upholding and implementing tennis regulations, overseeing global team events, marketing the game, and protecting the integrity of the sport through anti-doping and anti-corruption initiatives. The Women's Tennis Association (WTA) and the Association of Tennis Professionals (ATP) are partners with the ITF in governing professional tennis.

The ITF coordinates annual team tournaments for men's (Davis Cup), women's (Billie Jean King Cup), and mixed teams (Hopman Cup) as well as the Grand Slam events.

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What volume of a 0.35 M NaCl solution would contain 23.0 grams of NaCl?

Answers

With 25 grams of sodium chloride, 1.2 liters of a 0.35 M solution of sodium chloride may be created.

The quantity of solute dissolved in one liter of solution is known as molarity (M).

Molarity (M) is defined as the number of moles of a solute divided by the volume of the solution in litres.

M = n / v where

M stands for molarity, n for moles, and V for volume of solution.

NaCl's molar mass is 23 g/mol plus 35.5 g/mol.

= 58.5 g/mol

Now,

Given mass/molar mass equals the number of moles (n).

= 0.427

We must now determine the solution's volume.

M = 0.35 = 0.427 / v

V is 1.2 liters

Thus, 25 grams of sodium chloride might be used to create 1.2 liters of sodium chloride solution at 0.35M.

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pls answer quick
Consider the following claim: Group behavior can increase the chances for an individual and a species to survive and reproduce.

Identify evidence from the lesson that supports this claim. Use specific examples to explain the cause-and-effect relationship between particular group behaviors and an individual’s survival. Then, identify an additional, reputable source that provides evidence to further support this claim. Use this additional evidence to draw a conclusion about the role of group behavior in individual and species’ survival. Provide a link to the source at the bottom of your response.

Answers

Group behavior is also known as collective behavior, which increases the chances of species to reproduce and survive because they rely on one another to carry out actions essential for their survival like hunting, migration, and breeding.

Ethologists claim that social organisms rely heavily on other group members to survive.

The basic example of group behavior is a school of fish. These little fish species congregate in huge groups and travel great distances in search of food. When more people joined the group, researchers from Princeton University found that their ability to maintain orientation improved, making them more receptive to their surroundings.

Moreover, there are many pieces of evidence that show orcas (killer whales), which are highly sociable animals, form big pods of 20–30 people and 'plan' their hunting techniques. Younger individuals are also taught essential hunting techniques by older females who swim with them.

Conclusion: Social organisms that travel in groups rely on all members to carry out crucial behaviors that, if they didn't, would cause a significant decline in their populations because they couldn't feed or reproduce as successfully on their own as they could with the group's "help."

The link to the source is:- Couzin, I.D. (2018) Collective animal migration, Current Biology 28(17), R976-980.

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which reaction condition can't be used for the following transformation

Answers

The reaction condition making use of hydrazine (NH₂-NH₂) and hydroxyl ions cannot be used for the mentioned transformation.

Which catalysts are used for conversion of nitro compound to aniline?

Catalysts used for the reduction of nitro compound to aniline are palladium catalysts ,although iron and nickel along with HCl can also be used as they all belong to d-block of the periodic table, which are well-known for their properties to be used as a catalyst.

Hydrazine cannot be used as a catalyst for the conversion of nitro compound to aniline as it is expensive as well as poisonous. Catalysts which are to be used for such conversions must be cost effective and safe to handle.

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1.) How many atoms are in 6.72 x 10^4 moles of silver?

Answers

Answer:

How many atoms are in a mole of silver?

From Avogadro's number, we know that one mole of silver atoms is equal to 6.02 times 10 to the 23rd silver atoms

Explanation:

What are chemical changes that take place in the creation of a s’more

Answers

When you toast a marshmallow over a flame, a chemical reaction happens between the sugar and gelatin in the marshmallow. The reaction turns its outside brown and crispy.

Answer:

The marshmallow goes through a chemical change called combustion

Explanation:

Dont know if this helps but

chemistry problem
help!!!!!​

Answers

Answer:

1+1=2

Explanation:

According to the article, elements are named by the number of protons in the nuclei.

Which paragraph BEST supports the idea outlined above?

A
The periodic table is getting a little bit longer, thanks to the addition of four super-heavy elements.
B
The discoveries of elements 113, 115, 117 and 118 were confirmed recently by the International Union of Pure and Applied Chemistry. The group vets the man-made elements seeking a permanent spot on the periodic table, a chart listing all the elements that hangs in science classrooms around the world.
C
Atoms are the building blocks that make up elements. At the center of each atom is a nucleus composed of small particles called protons and neutrons. Nuclei is the plural of nucleus.
D
The new elements are known as super-heavy elements. Element 118, for example, is the heaviest element to date, with 118 protons alongside 176 neutrons.

Answers

The correct answer is: Atoms are the building blocks that make up elements. At the center of each atom is a nucleus composed of small particles called protons and neutrons. Nuclei is the plural of nucleus; option C.

What is atomic number of an element?

The atomic number of an element is the number of protons present in the nucleus of the atom of the element.

The nucleus is the center of the atom and is the heaviest part of the atom.

Another sub-atomic particle fund in the nucleus is the neutron.

Elements are named according to the number of protons in the nuclei.. This is because the number of protons in the nucleus of any given atom whereas the neutron number may vary, Also, electrons are easily removed from atoms of elements.

In conclusion, the number of protos in atom is used to name the atom.

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A sample of seawater from a tidal estuary was found to contain a concentration of 825 mg of chloride ion per kg of seawater. If the density of the sample was 1.035 g/mL, what is the molarity of the chloride ion?

Answers

The molarity of the chloride ion in the sea water is 0.024 M

We'll begin by obtaining the volume of the sea water. This can be obtained as follow:

Mass of water = 1 Kg = 1000 gDensity = 1.035 g/mLVolume of water = ?

Density = mass / volume

Thus,

Volume = mass / density

Volume of water = 1000 / 1.035

Volume of water = 966.18 mL

Next, we shall determine the mole of the chloride ion. This is illustrated below:

Mass of chloride ion = 825 mg = 825 / 1000 = 0.825 gMolar mass of chloride ion = 35.5 g/molMole of chloride ion =?

Mole = mass / molar mass

Mole of chloride ion = 0.825 / 35.5

Mole of chloride ion = 0.0232 mole

How to determine the molarityMole of chloride ion = 0.0232 moleVolume = 966.18 mL = 966.18 / 1000 = 0.96618 LMolarity = ?

Molarity = mole / volume

Molarity = 0.0232 / 0.96618

Molarity = 0.024 M

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Give three examples of how energy is transferred.

Answers

Conduction, convection, and radiation.

A 132.0 g sample of a nonvolatile compound was dissolved in 4.300 mol of cyclohexane (P° = 100.0 mmHg). The vapor pressure of the solution was determined to be 85.00 mmHg. What is the molar mass of the compound?

Answers

The molar mass of the compound is 336.36mol

Molar mass defined as the mass of a sample of that compound divided by the amount of substance

Here given data is mass of sample = 132.0 g

Mass of nonvolatile compound =  4.300 mol = 4.300 mol ×84.16g = 361.88g

Vapor pressure of the solution = 85.00 mmHg

We have to find molar mass of compound = ?

Then we have formula is p⁰-p/p⁰ = W₂M₁/W₁M₂ where,

M2 = molar mass of sample

W1 = molar mass of compound

W2 = weight of compound

Then, 84.00-85.00/84.00 = 361.88×361.88/132.0

M2 = 361.88×361.88×84/132.0

M2 = 336.36mol

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A liquid solvent is added to a flask containing an insoluble solid. The total volume of the solid and liquid together is 86.0 mL.
The liquid solvent has a mass of 26.0 g and a density of 0.865 g/mL. Determine the mass of the solid given its density is
2.75 g/mL.

Answers

Answer:

it's 50.11 trust me I know thank you

According to Le Châtelier’s principle, does the equilibrium
shift in the direction of products or reactants when N2
is
added to the equilibrium mixture of each of the following
reactions? 110.52
a. 2NH31g2 hv 3H21g2 + N21g2
b. N21g2 + O21g2 hv 2NO1g2
c. 2NO21g2 hv N21g2 + 2O21g2
d. 4NH31g2 + 3O21g2 hv 2N21g2 + 6H2O1g2

Answers

According to Le Châtelier’s principle or reactions in chemical equilibrium;

2 NH₃ (g) → 3 H₂ (g) + N₂(g) : addition of N₂ shifts equilibrium to the left

N₂ (g) + O₂(g) → 2 NO (g) : addition of N₂ shifts equilibrium to the right

2 NO (g) → N₂ (g) + O₂ : addition of N₂ shifts equilibrium to the left

4 NH₃ (g) + 3 O₂ (g) → 2 N₂ (g) + 6 H₂O (g) : addition of N₂ shifts equilibrium to the left

What is equilibrium in a chemical reaction?

Equilibrium in a chemical reaction refers to the point in a chemical reaction in which the rate of the formation of product from the reactants or the forward reaction is equal to the rate of formation of reactants from products or the backward reaction.

For equilibrium to be achieved in a chemical reaction the reaction must occur in a closed or isolated system.

The condition that occur in a reaction in equilibrium are described by Le Châtelier’s principle which states that for a reaction in equilibrium, the equilibrium position will shift to annul any constraint or change imposed on the system.

Considering the given reactions:

2 NH₃ (g) → 3 H₂ (g) + N₂(g) : addition of N₂ shifts equilibrium to the left

N₂ (g) + O₂(g) → 2 NO (g) : addition of N₂ shifts equilibrium to the right

2 NO (g) → N₂ (g) + O₂ : addition of N₂ shifts equilibrium to the left

4 NH₃ (g) + 3 O₂ (g) → 2 N₂ (g) + 6 H₂O (g) : addition of N₂ shifts equilibrium to the left

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How much time did it take Little Debbie to run 15 m if she was running 3 m/s?

Answers

Time did it take a little debbie to run 15 m if she was running 3 m/s is 5 sec.

debbie  running speed = 3 m/s

so,

in one meter = 1/3 sec

we have to calculate the time taken by little debbie to run 15 meters ,

therefore,

Time = distance / speed

time take by debbie to run 15 m = 15 / 3 sec

                                                     = 5 sec.

so, time taken by little dubbie to cover the distance of  15 meter is 5 sec.

Hence, Time did it take a little debbie to run 15 m if she was running 3 m/s is 5 sec.

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Specify the formal charges (both sign and magnitude) on the atoms labeled a-c.

Answers

The formal charges that the atoms bear in the compounds are;

1)

a - zero

b - plus half

c- zero

2)

a - zero

b - zero

c - plus one

What is the formal charge?

The formal charge has to do with the charge that an atom appears to have in a compound. We could often decode the formal charge that  compound might posses just by an intent look at the compound.

We know that the outermost shell of all the atoms in a compound ought to have eight electrons. This implies that all the atoms of elements in a compound must obey the octet rule. The atoms that do not obey the octet rule must bear a formal charge.

The formal charges that the atoms bear in the compounds are;

1)

a - zero

b - plus half

c- zero

2)

a - zero

b - zero

c - plus one

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Consider the reaction of cesium metal with gaseous fluorine to produce cesium fluoride. How many cesium atoms are on the product side of the equation?

Answers

Based on the equation of the reaction, there are two cesium atoms on the product side of the equation.

What is the equation of the reaction between cesium and fluorine?

Cesium is a metallic element that is found in the group 1A of the period table.

Cesium therefore has one valence electro which it can donate to an electronegative element to form a compound wit the element.

Fluorine belongs to the group 7A of the period table known as the halogens.

Fluorine accepts one electro from an electropositive element to form a compound with the element.

The equation of the reaction between cesium and fluorine is given below:

2 Cs + F₂ → 2 CsF

There are two cesium atoms on the product and reactant side of the equation.

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chemical fomular of the compound formed between boron and oxygen​​

Answers

The compound formed is Boric/Boron Oxide B2O3

One of the boron oxides is boron oxide. It has the chemical formula B2O3 and is white, glassy, and solid. It usually always exists in the vitreous (amorphous) form, but with sufficient annealing, it can crystallize. One of the most challenging chemicals to crystallize is this one. Boron oxide is a highly insoluble, thermally stable source of the element that can be used in ceramic, glass, and optical applications.

Oxide compounds are not electrically conductive. Some perovskite structured oxides, on the other hand, are electronically conductive and find use as the cathode in solid oxide fuel cells and oxygen production systems. They are mixtures with at least one metallic cation and one oxygen anion. reactions.

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How many moles of chlorine gas at 120.0°C and 26.1 bar would occupy a vessel of 18.5 L? R = 0.08314 L・bar/mol・K.

Answers

PV= nRT, The total number of moles of chlorine gas  are 140.09.

What is the mole?

PV= nRT,

T = 120 C = 120 + 273=  393 K

R = 0.08314 L . bar/ mol

P= 26.1 bar

The volume of the vessel= 18.5 L.

PV= nRT, on substituting the value of

26.1 * 18.5 = n * 0.08314 * 393 K

482.85= n* 3.24

482.85/ 3.24= n

149.0 =n

Therefore, PV= nRT, The total number of moles of chlorine gas  are 140.09.

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Calculate the mass of camphor (C₁0H₁60) that contains a billion (1.0 × 10°) carbon atoms.
Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits.

Answers

Mass of camphor is 252.47 g and mass is a measure of the amount of matter in a substance or an object

Camphor, an organic compound of penetrating, somewhat musty aroma, used for many centuries as a component of incense and as a medicinal. Modern uses of camphor have been as a plasticizer for cellulose nitrate and as an insect repellent, particularly for moths and the molecular formula is C₁₀H₁₆O

Here given data is camphor (C₁₀H₁₆0) that contains a billion (1.0 × 10°) carbon atoms

So, 1.0×10⁰ carbon atom×1 molecule of camphor/1 carbon atom

1 molecule of camphor×1 mole of camphor/Avogadro's number

1 molecule of camphor×1 mole of camphor/6.06×10²³ molecule

= 1.661 mole of camphor

1.661 mole of camphor ×152 g camphor = 252.47 g camphor

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A mens traditional haircut at the Barbara spot cost $20 and a shave cost $25 there is an 8.25% state sales tax what is the total price that Cheyenne must pay if she gets his haircut and beard shaved and he tips the barber 25% 5. In the story "Two Kinds" by Amy Tan, June says sheis determined to put a stop to her mother's "foolishpride" (Paragraph 48). In what ways do both Juneand her mother demonstrate "foolish pride"throughout the text?Make sure your response is strong by: clearly answering the prompt.including and explaining at least two pieces ofrelevant evidence.using transitions to connect ideas. Un granjero coloco una cerca al rededor de su parcela. La parcela mide 10 m de cada lado ya que es un cuadrado. Si puso los postes cada 3/4 de metro cuantos postres coloco? fitz company reports the following information. selected annual income statement data selected year-end balance sheet data net income $ 418,000 accounts receivable decrease $ 103,900 depreciation expense 45,600 inventory decrease 45,000 amortization expense 8,200 prepaid expenses increase 6,700 gain on sale of plant assets 6,600 accounts payable decrease 8,600 salaries payable increase 1,200 use the indirect method to prepare the operating activities section of its statement of cash flows for the year ended december 31. (amounts to be deducted should be indicated with a minus sign.) the volume of right circular cylinder a is 22 cubic centimeters. what is the volume, in cubic centimeters, of a right circular cylinder with twice the radius and half the height of cylinder a? 1 < x + 4 4please help me its due at 3:30 Solve the system of equations. -5a + 7b = 2 -15a + 21b = 6 manifesto for the utility prefect What is the value for y in the equation y=x2 when x=3? Jillion exercise 5 times a week. She runs 3 miles each morning and bikes in the evening. If she exercises a total of 30 miles for the week, how many miles does she bike each evening? Match each vocabulary word with its definition which detail from nurse and spy in the union army helps shape the central idea that finding one's way out of difficult situations takes cunning and bravery? the writer notes that she "trusted in [her] resourcefulness to escape" when forced to join the confederate army. the writer notes that she "trusted in [her] resourcefulness to escape" when forced to join the confederate army. the writer describes how the enemy came after her and "numerous saber strokes" were "aimed at her head." the writer describes how the enemy came after her and "numerous saber strokes" were "aimed at her head." the writer explains that after escaping the confederate army she "turned [her] attention to more quiet and less dangerous duties." the writer explains that after escaping the confederate army she "turned [her] attention to more quiet and less dangerous duties." the writer states that, if she was caught again, she would "consequently be hung up in the nearest tree." an increase in canada's real interest rates relative to real interest rates in the rest of the world economies exist when the government controls what goods and services will be produced and how the economy will grow, while economies exist when the market largely determines what goods and services get produced and how the economy grows. 5. Suppose you and a friend are test driving a new car. You drive out of the car dealership and go10 miles east, and then 8 miles south. Then, your friend drives 8 miles west, and 6 miles north.If you had the dealer's homing pigeon in the car, how far do you think it would have to fly toget back to the dealership? Use the simulation to test ideas. The distance that the bird must fly represents the sum of the 4 displacement vectors. Use thesimulation to test ideas you have about vector addition. After your tests, describe how you canuse the simulation to add vectors. (2amn) (-3am)pa sagot. thanks 1. At 2 p.m., a car is 100 km east of Toronto, driving eastward at 80 km/h. A truck leaves Toronto at 2 p.m. and is driving eastward at 120 km/h. At what time will the truck pass the car? How far east of Toronto will they be when this occurs? 1. De ________ son ellos?Ellos son de ________. dnde, noches dnde, Espaa llaman, Estados Unidos dnde, encantado2. Buenos das. Yo me ________ Pedro. Y usted?Hola, Pedro. Yo ________ la seora Guilln. llamo, soy soy, llamo soy, soy llamo, llamo3. Hasta ________, Alejandra.Nos ________, Adrin! chau, luego adis, vemos luego, vemos luego, pronto brady is the lead supervisor at an up and coming company. over the last year, profits at the company have started dropping. the last two products released did not do well on the market, and the company is worried about how they will recover. what would be the best way for brady to work to resolve this problem? Write the next three terms of the following sequences.58, 138, 218, 298, 378, ...