which of these formulas could be only an empirical formula, only a molecular formula, either a molecular or an empirical formula? drag the appropriate items to their respective bins.

Answer:

A gene

Explanation:

A gene because you carry those traits from your parents and you keep passing those to your offsprings.

Answer:

H2o water is correct please mark as brainliest

Answer:

d is false

Explanation:

because when the Temperature of gas in the container increases the molecule increases or expands and collide

When cytosine reacts with NaNO2 and HCl to form Diazonium salt.

Diazonium salt or diazonium compounds are defined as the group of the organic compounds which sharing a common functional group [R−N⁺≡N]X⁻ where R is any organic group, like an alkyl or an aryl, and X can be an organic or inorganic anion, like a halide.

As we know that, Cytosine is a 6 membered ring consisting of

Thus, we concluded that the cytosine reacts with NaNO2 and HCl to form Diazonium salt.

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Answer:

Yes. As soon as acceleration disappears, the object just continues with whichever speed it has. The acceleration changes speed; is there no acceleration, then speed is constant.

Explanation:

Answer:

oil & mining are big in earth sciences

Answer:

false

Explanation:

there are lot of aspects of Mars that they are disconcerting still like scientists get paid a lot because of that astronomers get paid a lot because of that also.

By the principle of atom economy the second process is more efficient.

We know that the atom is the smallest particle of a substance that could take part in a chemical reaction. We are also aware that all compounds are composed of atoms and that a chemical reaction has to do with the rearrangement of atoms in such a way that be products could be formed.

In this case, we know that an organic product may be obtained in a sequence of reactions and the atom economy is very important in the nature of the process that is being carried out. Let us now take  good look at the two processes that could be shown.

In the first process, we can see that there are a lot of products that could just be classified as side products and does not have a real relevance to the final products. In the second process, we have only one waste product and that is water.

As such, by the principle of atom economy the second process is more efficient.

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For each degree of temperature change, the mean molecular speed increases by about 1 m/s. At 100 °C, the mean molecular speed is about 17% faster than at 0 °C.

Temperature is a numerical expression of how hot (or energetic) stuff or radiation is.

There are three different types of temperature scales: those, like the SI scale, that are defined in terms of the average translational kinetic energy per freely moving microscopic particle, like an atom, molecule, or electron, in a body; those that only depend on strictly macroscopic properties and thermodynamic principles, like Kelvin's original definition; and those that are defined by practical empirical properties of particulates rather than by theoretical principles.

Using a thermometer, one can gauge temperature. It is calibrated using different temperature scales, each of which historically defined itself using a different set of reference points and thermometric materials.

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Starting with solid argon at room temperature, we need to cool it to -189.2 c to convert it into the liquid state.

Then, we need to heat it slightly till it reaches a temperature of -185.7 c. At this temperature, the liquid argon will convert into gaseous argon.

There are three states of matter i.e, solid state, liquid state, and gaseous state. These states are interconvertible which means that we can convert a substance from one state to another.

The conversion from solid to liquid and then gas or vice versa happens at specific temperatures that are known as boiling point, melting point, freezing point, etc.

The melting point is the temperature at which a solid gets converted into a liquid.

The boiling point is the temperature at which a liquid gets converted into a gas.

The melting and boiling points of Argon are -189.2 °C and -185.7 °C respectively.

Thus, starting with solid argon at room temperature, we need to cool it to   -189.2 °C to convert it into the liquid state.

Then, we need to heat it slightly till it reaches a temperature of -185.7 °C. At this temperature, the liquid argon will convert into gaseous argon.

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The temperature of the mesosphere is much higher than the asthenosphere overall, but yet is is still a ductile solid. The thing that keeps it from melting is high pressure.

The mesosphere plays a crucial role in protecting the earth. Most meteors and asteroids are destroyed by the mesosphere before they can impact the earth's surface.

An area of the Earth's atmosphere is called the mesosphere. Directly above the stratosphere and beneath the thermosphere lies the mesosphere. It covers a distance of 31 to 53 miles, or 50 to 85 kilometers, above our planet. The mesosphere's temperature falls with height.

It should be noted that this high pressure that keeps it solid in form and does not let it melt down.

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The temperature of the mesosphere is much higher than the asthenosphere overall, but yet is is still a ductile solid. what keeps it from melting?

Cool temperature

Distance from the sun.

High pressure

Low pressure

Answer:

Explanation:

The isotope Al-27 has 13 protons and 14 neutrons. Aluminium's average atomic mass is 26.981539 AMU

When looking for a mathematical relationship between two variables use a line graph.

A mathematical variable is one that can be found by the use of algebra or by a the use of graph. We know that a line graph involves plotting the independent variable on the horizontal axis and the dependent variable on the vertical axis.

The relationship between the two variables can be determined by studying how much the data set suits a particular equation of line of best fit or by considering the correlation coefficient of the scatter plot.

Hence, when looking for a mathematical relationship between two variables use a line graph.

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Missing parts;

When looking for a mathematical relationship between two variables, use a _____.

A. line graph

B. circle graph

C. bar graph

D. data table

Answer:

Entropy generally increases when a reaction produces more molecules than it started with.

Explanation:

a. The jigsaw puzzle is taken apart and put back in the box.  entropy decreases

b. Clothes are folded and put away. entropy decreases

c. Ice turns into steam​. entropy increases

Entropy is the measurement of the amount of heat energy per unit of temperature in a system that cannot be used for productive labor. Entropy is a measure of a system's molecular disorder or unpredictability since work is produced by organized molecular motion.

Entropy theory offers profound understanding of both the direction underlying spontaneous development for many commonplace events.

a. The jigsaw puzzle is taken apart and put back in the box.  entropy decreases

b. Clothes are folded and put away. entropy decreases

c. Ice turns into steam​. entropy increases

Therefore,

a. The jigsaw puzzle is taken apart and put back in the box.  entropy decreases

b. Clothes are folded and put away. entropy decreases

c. Ice turns into steam​. entropy increases

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[tex] \: 1.237 \times 10^{23} molecules \: of \:I _{2} \: are[/tex]

[tex]are\: produced \: and \: 53.74 \: g \: of \: I _{2} \: are[/tex]

produced from the reaction.

The overall balanced equation for the reaction is,

[tex]2CuCl_{2} + KI→2CuI + 4KCl + I_{2}[/tex]

[tex]Number \: of \: moles \: ofCuCl_{2}=0.4235 \: mol [/tex]

[tex]2 \: moles \: of \: CuCl_{2} \: produce \: \: 1 \: mole \: [/tex]

[tex]of \: I_{2}.[/tex]

[tex]2 \: mole \: of \: CuCl_{2} = 1 \: mole \: of \: I_{2}[/tex]

[tex]1 \: mole \: of \: I_{2} \: = 6.022 \times 10 ^{23} \: molecules \: of I_{2}[/tex]

So, the number of molecules produced in the reaction of

[tex] I_{2} \: are[/tex]

[tex] = \frac{0.4235 \times 6.022 \times 10 ^{23} }{2 } [/tex]

[tex] = 1.237 \times 10^{23} \: molecules \: [/tex]

[tex]1.237 \times 10^{23} \: molecules \: of \: I_{2} \: are \:[/tex]

produced from the reaction.

[tex]Mass \: of \: I _{2} \: produced \: are \: is ,[/tex]

[tex] = \frac{0.4235 \times 253.8}{2} [/tex]

[tex] = 53.74 \: g[/tex]

[tex] 53.74 \: g \: of \: I _{2} \: produced \: in \: the \:[/tex]

reaction.

[tex]Therefore , \: 1.237 \times 10^{23} molecules[/tex]

[tex]of \: I_{2} \: are\: produced \: and \: 53.74 \: g \: of[/tex]

are produced in the reaction.

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The balanced chemical equation showing the reaction between iron (iii) oxide and carbon monoxide to form iron (ii) oxide and carbon oxide is :

                     FE2O3 + 3CO → 2FE +3CO2

Two moles of iron with three moles of carbon dioxide gas are produced when one mole of iron(iii) oxide reacts with three moles of carbon monoxide

A balanced chemical equation is defined as the number of atoms of each type in the reaction being equal to the reactants and product sides.

The mass and charge is equal in a balanced chemical reaction.

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The empirical formula of the compound is CH₃

The empirical formula is determined as follows:

Given the general equation of the combustion of hydrocarbons as follows:

CxHy + O₂ → x CO₂ + y H₂O

mass of CO₂ produced = 3.54 g

molar mass of CO₂ = 44 g/mol

moles of C in the sample = 3.54/44  = 0.08 moles

molar mass of C = 12 g/mol

mass of C in the sample =  0.08  * 12 = 0.96 g

mass of H₂O produced  = 1.09 g

molar mass of water = 18 g/mol

moles of H in the sample = 1.09 /18  * 2

moles of H in the sample = 0.12 moles

Ratio of C : H = 0.08 : 0.12

Ratio of C : H = 1 : 3

Therefore, the empirical formula of compound = CH₃

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Answer:

A

Explanation:

eg digestive system consists of ma y organs working towarss the break down of large insoluble food molecules

Answer:

A is the answer

Explanation:

The calculated answer is 40x2/6.023x10²³

Calcium is a mineral that is most frequently linked to strong bones and teeth, but it also plays a critical role in blood clotting, assisting with muscular contraction, and regulating regular heartbeats and nerve activity. Calcium has a 40g molar mass (mass of 1 mole). I'm assuming that all you're looking for is the mass of two calcium atoms, which is incredibly little:

A mole of calcium weighs 40g and contains 6.023 x 10²³ atoms.

There would be 1.328x10-22 g of calcium if 2 calcium atoms have a mass of 40x2/6.023x10²³.

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Explanation:

................easy ngl

Answer:

for protons going down it is:

(already given)

6

6

8

8

17

17

for neutrons going down it is:

6

7

8

(already given)

10

18

20

for electrons going down it is:

6

6

8

8

(already given)

17

Explanation:

bascially the number of protons is the bottom number to the left and the number of electrons is the same as the number of protons and the number of neutrons is basically the mass number (the top right one) minus the proton number

hope this helps:)

The metals are malleable and ductile, which means that they can be beaten into sheets and can be given any desired shape while the nonmetals are brittle and soft. Metallic elements are considered as good conductors of electricity and heat while nonmetallic elements are poor conductors. Metals are lustrous while nonmetals are nonlustrous.

A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically ductile (can be drawn into wires) and malleable (they can be hammered into thin sheets).

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The valproic acid contains 0.0645 milligrams

1000 microgram = 1 milligram

From the question given, the following data were obtained:

We can convert 64.5 micrograms to milligrams as illustrated below:

1000 microgram = 1 milligram

Therefore,

64.5 micrograms = (64.5 micrograms × 1 milligram) / 1000 microgram

64.5 micrograms = 0.0645 milligrams

Thus, the valproic acid contains 0.0645 milligrams

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It forms the basic building blocks of organic molecules this is the carbon's unique bonding ability

Carbon is an essential building block of organic molecules. this is because it has a unique molecular structure that allows it to form many strong bonds with itself and other crucial elements and it is typically combined with hydrogen to form hydrocarbons and hydrocarbons can have single, double, or triple bonds between carbon atoms. carbon atoms can form four covalent bonds and it make strong bond because any molecule are formed with carbon so is does't found rarely in molecule and only one carbon is not present in molecule at a time there are so many carbons are present

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0.3271 kJ is the heat energy released when 29. 5 g of liquid mercury at 25. 00 °c is converted to solid mercury at its melting point. Constants for mercury at 1 atmheat capacity of hg(l) 28. 0 j/(mol⋅k) melting point234. 32 k enthalpy of fusion 2. 29 kj/mol

First convert the temperature into kelvin.

25.00°C+273.15=298.15K

Now convert the hear capacity into J/g.K

28.0(j/mol.K)×1mol/200.59g

=0.1396J/g.K

Now calculate the hear transferred using the specific heat of mercury

q=mcΔT

q=(29.5g)0.1396J/gK)(234. 32 -298.15 K)

q=-262.85 j = -0.26286 Kj

The calculation would involve the enthalpy of fusion, but with a negative sign.

(29.5g Hg)(1mol/200.59g Hg)×-2.29Kj/mol= -0.064221 Kj

Add the heat transferrers of both process together

-0.26286 Kj-0.064221 Kj = -0.327081

The total heat released is 0.3271 kJ.

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Answer:

Determine the weight of an object. For example, a glass of water weights 200 grams net (not including the glass).

Find out the volume of an object. In our example, it's 200 cm3 .

Divide weight by volume. 200 g / 200 cm3 = 1 g/cm3

Optionally, change the unit.

Explanation:

It has been observed that most US adult intake high levels of sodium and low level of potassium.

The American Health Association (AHA) published in its reports that US adults consume food containing more sodium and avoid food containing potassium. It causes various side effects and health-related problems. It was estimated that 99.4% of the total United States adults intake high levels of sodium on daily a basis. AHA guidelines recommend (<1500 mg) of sodium to be consumed. They consume even more than the Institute of Medicine's tolerable upper Intake level which is 2300 mg.

In the US, adults aged over 51 years or people suffering from diabetes, chronic kidney disease, or hypertension are recommended by the Dietary Guidelines to reduce sodium intake to 1500 mg per day. The overall result suggested that 98.8% consumed more than 1500 mg per day, and 60.4% consumed more than 3000 mg per day. These calculations of intake are more than double the recommendation guidelines. Only less than 2% of US adults and around 5% of US men consumed less than 4700 mg per day of potassium.

Therefore, it is concluded that the maximum US adult intake is high levels of sodium and low level of potassium.

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Chemical Formula : It is the method of showing the information about the chemical proportion of atoms of a given element.

Types of Chemical Formula : There are three types namely

1. Molecular

2. Empirical

3. Structural

a.  The chemical formula of the given compound asked in the problem are :

i. Copper (II) oxide - CuO

ii. Iron (III) Carbonate - Fe2(CO3)3

iii. Magnesium Sulphate - MgSO4

b. The proportion by mass of the given compound are :

i. CuO = Atomic mass of copper and oxygen are = 64 and 16

so, mass proportion = 64 / 16 = 4 : 1

ii. Iron Carbonate :  = 14 :1

iii. Magnesium Suphate - 24 / 32 = 3:4

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Pyramid of energy has not an advantage: B. Assigning the decomposers and detritivores to a particular trophic level.

Pyramid of energy is a graphical representation of the amount of energy at each trophic level of a food chain (see the picture below).

The bottom level represents the producers, followed by primary, secondary and tertiary consumers.

The decomposers and detritivores do not have a particular trophic level.

Decomposers break down dead plants and animals into simpler inorganic substances.

Detritivores are organisms, for example a fungus or an earthworm, that are decomposing organic matter.

Decomposers have very important role in the circle of life.

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Answer:

b. Assigning the decomposers and detritivores to a particular trophic level.

Explanation:

Answer:

erosion

Explanation:

erosion is when the top layer of the earth gets slowly worn away bhy water and ither stuff.

Answer: 2(B)

Explanation: It's a little confusing to read but from my understanding it's 2 because the atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons