Front

What is the purpose of coefficients in a chemical equation?

Back

Coefficients are used to balance chemical equations by indicating the number of molecules or moles of each substance involved in the reaction.

Front

What is the balanced equation for the decomposition of silver oxide (Ag2O)?

Back

2Ag2O → 4Ag + O2

Front

How many hydrogen atoms are present in (NH4)3N?

Back

12 hydrogen atoms.

Front

What is the balanced equation for the reaction of tin(IV) oxide with hydrogen?

Back

1SnO2 + 2H2 → 1Sn + 2H2O

Front

What do combustion reactions typically produce?

Back

Combustion reactions typically produce carbon dioxide (CO2) and water (H2O).

Front

What is the difference between coefficients and subscripts in a chemical formula?

Back

Coefficients indicate the number of molecules, while subscripts indicate the number of atoms of an element in a molecule.

Front

What is a combustion reaction?

Back

A combustion reaction is a chemical reaction that occurs when a substance reacts with oxygen, producing heat and light.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

How do you determine the number of atoms in a compound?

Back

Count the number of atoms of each element based on the subscripts in the chemical formula.

Front

What is the balanced equation for the reaction of hydrogen and oxygen to form water?

Back

2H2 + O2 → 2H2O