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3 years ago

How many oxygen atoms are in the product of this balanced chemical equation

Chemistry

1 answer:

svlad2 [7]3 years ago

8 0

Answer:

two oxygen atoms

There are two oxygen atoms in the reactants and two atoms of oxygen in the product.

Explanation:

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Breve resumen de que es volumen

andrey2020 [161]

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3 years ago

The chemical equation shows how ammonia reacts with sulfuric acid to produce ammonium sulfate. 2NH3(aq) + H2SO4(aq) (NH4)2SO4(aq

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3 years ago

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Modern pennies are composed of zinc coated with copper. A student determines the mass of a penny to be 2.483 g and then makes se

Aleonysh [2.5K]

Answer:

97.1%

Explanation:

Using the ideal gas equation, the number of moles of hydrogen gas produced can be calculated from information provided about the volume of gas evolved at a given temperature and pressure.

The stoichiometry of the reaction is now used to obtain the number of moles of Zn that will produce a given number of moles of hydrogen from the balanced reaction equation as shown. This gives us the number of moles of zinc reacted hence the mass of zinc in the coin since it is assumed that all the zinc reacts.

This is now used to calculate the mass percentage of Zn as shown.

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3 years ago

Which ionic compounds are not likely to dissolve in water?(More than 1 answer.)

olasank [31]

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3 years ago

Two unknown compounds are analyzed. Compound I contain 5.63 g of tin and 3.37 g of chlorine, while compound II contains 2.5 g of

never [62]

Answer:

Compounds 1 and 2 are not the same

Explanation:

To solve this question we need to find the molecular formula of the compounds converting the mass of each atom to moles. Molecular formula is defined as the simplest whole number ratio of atoms present in a molecula:

Compound 1:

Moles Tin:

5.63g Sn * (1mol / 118.7g) = 0.04743 moles

Moles Cl:

3.37g Cl * (1mol / 35.45g) = 0.09506 moles

Ratio Cl:Sn

0.09506 moles / 0.04743 moles = 2

Molecular formula SnCl₂

Compound 2:

Moles Tin:

2.5g Sn * (1mol / 118.7g) = 0.02106 moles

Moles Cl:

2.98g Cl * (1mol / 35.45g) = 0.08406 moles

Ratio Cl:Sn

0.08406 moles / 0.02106 moles = 4

Molecular formula SnCl₄

Compounds 1 and 2 are not the same because molecular formulas are different.

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3 years ago