10.1 Chemical Equations, part 2 assignment

Front

What law governs the balancing of chemical equations?

Back

Law of Conservation of Matter/Mass

Front

What is the total number of atoms present in 5Na₃PO₄?

Back

40

Front

Which equation is balanced? 1. PbO₂ + 2H₂ 2. SO₂ + H₂O → H₂SO₄ 3. 2Na + 2H₂O → 2NaOH + H₂

Back

2Na + 2H₂O → 2NaOH + H₂

Front

What are the coefficients needed to balance the equation? 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 3, 1, 3

Back

2, 3, 1, 3

Front

What coefficient should be used to balance the equation N₂ + O₂ → _NO?

Back

2

Front

Define a chemical equation.

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

What is a reactant in a chemical equation?

Back

A reactant is a substance that undergoes a chemical change in a reaction.

Front

What is a product in a chemical equation?

Back

A product is a substance that is formed as a result of a chemical reaction.

Front

What does it mean for a chemical equation to be balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in the reaction.