How would I find the mass of the statue? Is it conversions or just basic math?

Influenza viruses spread mainly through droplets of respiratory secretions in the air, typically generated by coughing and sneezing.

A contagious illness brought on by influenza viruses, influenza is also referred to as "the flu." Flu-like symptoms, which can range in severity from moderate to severe, frequently include fever, runny nose, sore throat, muscle discomfort, headache, coughing, and exhaustion. After being exposed to the virus, these symptoms usually appear one to four days later and remain for two to eight days.

Especially with children, diarrhea and vomiting can happen. Pneumonia, which can be brought on by the influenza virus or a subsequent bacterial infection, may develop from the viral-related illness. Other side effects of infection include meningitis, encephalitis, acute respiratory distress syndrome, and deterioration of pre-existing conditions like asthma and cardiovascular disease.

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The balanced equation of Fe + [tex]H_{2} O[/tex] → [tex]Fe_{3} O_{4}[/tex] + [tex]H_{2}[/tex] is given as ,

3 Fe + 4[tex]H_{2} O[/tex] → [tex]Fe_{3} O_{4}[/tex] + 4[tex]H_{2}[/tex]

The balance equation is the equation in which number of atom in reactant side is equal to number of atom in product side .

The inclusion of stoichiometric coefficients to the reactants and products is necessary to balance chemical equations . This is significant because a chemical equation must adhere to the laws of conservation of mass and constant proportions , meaning that both the reactant and product sides of the equation must include the same amount of atoms of each element .

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Answer: This is True

Explanation: I'm only writing this part so that it counts. :)

Answer: True

Explanation: because you got to understand we use electricity every day.

The hydrogen bonding of water is one of the main property of water which makes it responsible for all the other physical and chemical properties.

Water molecules are polar in nature and they form hydrogen bonds. Hence, they have a high boiling point , high specific heat and density. Water can exhibit the properties of an acid, as well as a base (amphoteric character). The water molecules are constantly moving and the hydrogen bonds continuously breaks and forms again. These hydrogen bonds are strong, which is the reason for the unique properties of water.

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The statement metals can hammered into thin sheets and non metals are brittle is correct. Thus option C is true.

Metals is defined as a substance with good conductor of electricity, luster and malleability, which are ready to lose electron to form a positive ion i.e. cation. Metals can also be defined according to their periodic table.

Non metals is defined as a substance which are poor conductor of electricity, luster and malleability which are ready to gain electron to form a negative ion i.e. anion. They can be gas, liquid or solid.

Thus, metals can hammered into thin sheets and non metals are brittle is correct. Thus option C is true.

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The number of protons and electrons in an atom is equal, making them neutral particles. According to definition, an ion is an electrically charged particle that is created by either taking electrons from a neutral atom to generate a positive ion or adding electrons to produce a negative ion.

Take note that while the ion is known as fluoride, the atom is called fluorine. The electronic structure of a fluoride ion is similar to that of a neon atom (Ne). A fluoride ion, however, is not a neon atom. A fluoride ion's nucleus, which is an atom of fluorine, has 9 protons, but the nucleus of a neon atom has 10.

The fluorine atom has nine electrons, but the fluorine ion (flouride) has ten, meaning that while fluorine has nine protons and electrons, the flouride has one more electron than the fluorine atom does, which has nine and ten electrons respectively.

While flouride is negatively charged electrically, fluorine is electrically neutral.

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The term combustion has to do with a situation in which a substance is burnt in oxygen. When we burn a substance in oxygen, we say that the substance is oxidized.

Methanol is a member of the alkanol series of organic compounds. The equation for the combustion of methanol is shown to be as follows;

[tex]CH_{3} OH + 3O_{2} ---- > 2O_{2}+ 4H_{2}O[/tex].

Looking at the set up as we can see it in the question, we can observe the following;

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5.70 kg = 5700000mg

kg- The International System of Units (SI) uses the kilogram (sometimes known as the kilogram) as the unit of mass.

mg- a unit of mass or weight that weighs 0.0154 grains or one thousandth of a gram.

Conversion is important because It's necessary to convert units; it's not merely important. Scientists and engineers have miscommunicated, leading to the loss of space probes.

You are aware that 1,000 g make up 1 kilogram.

After that, change 1 kilogram to milligrams.

To convert from grams to milligrams, multiply the number of grams by 1,000.

A kilogram is equivalent to one million milligrams.

∵1 Kg = 1000000 mg

∴ 5.70 kg = 5.70 x 1000000

               = 5700000 mg

Hence , 5.70 kilograms equals 5700000 milligrams.

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An ionic equation for the displacement reaction between copper ions and iron: Cu²⁺(aq) + Fe(s) → Cu(s) + Fe²⁺(aq)

In this chemical reaction, there is a transfer of electrons from iron (Fe) to copper (Cu).

Iron change oxidation number from 0 to +2 (loose electrons) and copper change oxidation number from +2 to 0 (gain electrons).

Oxidation half reaction: Fe⁰ → Fe²⁺ + 2e⁻.

Reduction half reaction: Cu²⁺ + 2e⁻ → Cu⁰.

Oxidation is increase of oxidation number.

Reduction is lowering oxidation number because atom gain electrons.

(aq) is an aqueous solution.

(s) is a solid, insoluble in the water.

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Answer:

The correct answer is Calcium Carbonate.

Explanation:

Please ask questions correctly

Entropy has been defined as the unavailable energy for the thermodynamic system. The total change in the entropy of the reservoir with 400 J energy is 0.15 J/K.

Entropy change has been the measure of the energy that got dispersed in the thermodynamic system. The change in energy and the change in temperature are used to give the entropy change.

Given,

Heat transferred (ΔQ) = 400 Joules

Temperature of hot reservoir (Th) = 30°C (30 +273) = 303K

The temperature of the cold reservoir (Tc) = 0°C (273K)

Using ΔS = Q ÷ T as:

For hot resorvoir:

ΔShot = - 400 ÷ 303

ΔShot = - 1.32 J/K

For cold reservoir:

ΔScold = 400 ÷ 273

ΔScold = 1.47 J/K

Total change in entropy (ΔStotal) is given as:

ΔStotal = ΔShot + ΔScold

= - 1.32 + 1.47

= 0.15 J/K

Therefore, 0.15 J/K is the change in the entropy of the reservoir when heat is transferred from hot to cold.

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The final concentration after adding 2L of water to a 0.50 L volume of 12 M KCl is 2.4 M.

The concentration of a solute in terms of molarity is expressed as the number of moles of solute per liter of solution. The problem is regarding the dilution process of KCl. The molarity can be calculated using the dilution formula, expressed as (initial concentration of 1st solution)(initial volume)=(final concentration)(final volume). This formula shows that the number of moles remained the same throughout the process.

(12 M KCl) * ( 0.50 L) = (final concentration) ( 0.50 L + 2.0 L)

final concentration = 2.4 M KCl

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Answer:

-bubbles produced when iron placed in acid -two liquids combined and a solid appeared -white substance turned blue when water was added

Explanation:

all the other answers could be turned back into their previous state, or haven't really changed.

Atoms form positive ions by losing electrons or negative ions by gaining electrons through a special type of chemical combination called electrovalent or ionic combination.

It follows that metals are electropositive elements which donates its valence electrons to the nonmetals. The atoms which donates its electrons become positively charged while the species that recieve electrons become negatively charged.

In the formation of sodium chloride, sodium donates its 1 valence electron to chlorine become positively charged; Na+ and chlorine which recieves the electron to add to it's 7 valence electrons become negatively charged; Cl-

Na + Cl ---- Na+Cl-

So therefore, atoms form positive ions by losing electrons or negative ions by gaining electrons through a special type of chemical combination called electrovalent or ionic combination.

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As the solution turns yellow when re cabbage juice indicator  is added it implies that its base solution so the color of the  solution when hibiscus flower juice added is dark grey to green.

when hibiscus indicator added Anywhere from dark pink to pale pink usually indicates an acid, while dark gray to green colors usually indicate a base.

Dark blue should be the color of  red cabbage indicator. The cabbage indicator's color will shift to red or pink if the solution is an acid, and to green or yellow if the solution is a base. In the event that the test solution is neutral, it will stay purple or blue

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The number of atoms in 1 inch is 240 billion atoms

Given:

diameter of atom = 1.0 × 10^-10 m

To Find:

atoms are there along a 1.0-inch line

Solution:

1 inch = 0.254 m

0.254 m = 1 inch

1 m = 1/0.254 = 3.93 inch

1.0 × 10^ -10 = 3.93 x 1.0 × 10^-10 = 3.93 x 10^-10 inch

3.937 x 10-2 inches. This is approximately 4 one-billionths of an inch.

Divide 24 cm by the atomic diameter to get the number of atoms.

24/ (1.0 x 10^-10)= 24 x 10^10 = 2.4 x 10¹¹

240 billion atoms

Hence, the number of atoms in 1 inch is 240 billion atoms

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The correct answer as to which observation most likely indicates that only a chemical change has taken place would that the change cannot be reversed.

A chemical change is the transformation of one substance into another, the emergence of new compounds with distinct properties, or any combination of these. It happens when two compounds mix to create a new material (synthesis or either decomposes to form more substances)

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Answer: This may help you

https://ay.live/1vVB3

Explanation:

A student says that all pure substances are elements. Do you agree? Why or why not?

i don't. pure substances include elements, compounds and crystals. they would've been correct if they stated all elements were pure substances.

or

I disagree. Elements form all pure substances, but some pure substances include elements bonded together to form molecules and compounds.

The chiral ketone (2R) -2-methyl-1-phenylbutan-1-one is converted into

(2S)-2-methyl-1-phenylbutan-1-one by base‑catalyzed racemization.

The mechanism of base‑catalyzed racemization of the chiral ketone is as above.

Ketone is defined as the organic compounds having C=O as a functional group.

Chiral ketone are those in which the the alkyl group bonded with C=O are same.

Base‑catalyzed racemization is defined as a process in which the optically active compounds which is consist of only one enantiomer are allow to converted into an equal mixture of enantiomers having zero optical activity in the presence of catalyst which is basic in nature.

Racemization rates are mainly dependents on the molecule and conditions some of them are pH and temperature.

Thus, we concluded that the chiral ketone (2R) -2-methyl-1-phenylbutan-1-one is converted into

(2S)-2-methyl-1-phenylbutan-1-one by base‑catalyzed racemization.

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The mass is 16.7 g and the volume is 16.2. The percent error is 2 percent.

Percent error is the difference between the estimated value and the calculated value. Percent error is calculated by the actual value subtracted by the expected values divided by the expected value.

Given, that the density is 1.00 g/ml

The temperature is 4-degree celsius

The mass is 16.7 g

The volume is 16.2 l

Density = m/v  16.7 / 16.2 = 1.03 which is the actual value

The estimated value is 1.00 g/ml

The formula is

1.03 - 1.00 /  1.00 = 0.02

0.02 x 100 = 2 %

Thus, the percent error is 2 %.

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The theoretical yield of bromobenzene in this reaction when 30.0g of benzene reacts with 65.0 g of bromine is: 46.153 %

To solve this problem the theoretical yield formula and the procedure we will use is:

theoretical yield = relation between reactants * 100  

Information about the problem:

Applying the theoretical yield formula we get:

theoretical yield = (30.0g * 1g /65.0 g) * 100

theoretical yield = 46.153 %

In chemistry, the yield of a reaction is the amount of product obtained from the conversion of the reactants in a chemical reaction.

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The path integral molecular dynamics study describes the effects of nuclear quantum fluctuations on the dynamical and equilibrium characteristics of bifurcation pathways in hydrogen-bonded dimers combining ammonia and water.

At the order of 20 K of cryogenic temperatures , the hydrogen atoms in the molecules along these isomerizations acting as hydrogen-bond donors interchange their original connective characters. It comprises three stages in the resulting quantum transition paths, the final and the initial states comprise general rotations during which two protons possess their classical-like characteristics

The impacts from quantum fluctuation are displayed in the changes operated at the medium passages over transition states, as the proton's spatial extents stretch over usual lengths comparable to the distances between dangling and connective basins of attractions.

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The Phlogiston Theory of ordinary burning posited that the materials that were combustible all contained a material called Phlogiston.

In science, theories are often put forward to explain a phenomenon.  theory may not survive the test of time when contrary evidences begin to emerge.

The Phlogiston Theory of ordinary burning posited that the materials that were combustible all contained a material called Phlogiston  which is released when the material is burnt.

However, Lavoisier was able to show by experiment that this position was a mere speculation and the the combustion of a substance was due to its reaction with oxygen.

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Answer:

False.

Explanation:

Dimensional analysis is a way of converting quantities. The study of space and time is cosmology.