Front

What are the coefficients that will balance the skeleton equation: CH₄ + __O₂ → __CO₂ + __H₂O?

Back

1, 2, 1, 2

Front

What are the coefficients that will balance the skeleton equation: Na + __F₂ → __NaF?

Back

2, 1, 2

Front

What are the coefficients that will balance the skeleton equation: Fe + __O₂ → __Fe₂O₃?

Back

4, 3, 2

Front

What does the principle of conservation of mass state in chemical reactions?

Back

Matter is not created or destroyed.

Front

What does the arrow in a chemical equation represent? H₂ + O → H₂O

Back

Yields

Front

Define a balanced chemical equation.

Back

A chemical equation where the number of atoms for each element is the same on both sides.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of each reactant and product.

Front

What is a skeleton equation?

Back

A chemical equation that shows the reactants and products but not the coefficients.

Front

How do you determine the coefficients needed to balance a chemical equation?

Back

By ensuring the number of atoms of each element is equal on both sides.

Front

What is the role of reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo change during the reaction.