Writing Chemical Equations Practice

Front

What does (g) represent in a chemical equation?

Back

(g) represents gas, not grams.

Front

What is the correct skeleton equation for the reaction of barium metal with water?

Back

Ba + H₂O → Ba(OH)₂ + H₂

Front

What is the correct formula and physical state for zinc and oxygen reactants in the production of solid zinc oxide?

Back

Zn (s) + O₂ (g)

Front

What is the skeleton equation for the decomposition of mercury(II) oxide when heated?

Back

HgO (s) → Hg (l) + O₂ (g)

Front

What is a word equation for the reaction of magnesium with oxygen?

Back

Magnesium + Oxygen → Magnesium Oxide

Front

What does (s) represent in a chemical equation?

Back

(s) represents solid.

Front

What does (l) represent in a chemical equation?

Back

(l) represents liquid.

Front

What does (aq) represent in a chemical equation?

Back

(aq) represents an aqueous solution.

Front

What is the significance of balancing a chemical equation?

Back

Balancing a chemical equation ensures that the number of atoms for each element is the same on both sides of the equation.

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.