Balancing Equations Practice

Front

Which side of a chemical equation is the reactant side?

Back

Left (before the yields sign)

Front

What is the little number after an element in a chemical equation called? Example: H₂

Back

Subscript

Front

Which side of a chemical equation is the product side?

Back

Right (after the yields sign)

Front

Which problem is balanced? PbO₂ + 2H₂, SO₂ + H₂0 --> H₂SO₄, 2Na + 2H₂O --> 2NaOH + H₂

Back

2Na + 2H₂O --> 2NaOH + H₂

Front

Balance this equation: _SnO₂ + _H₂ --> _Sn + _H₂O

Back

1,2,1,2

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a compound to indicate how many molecules are present.

Front

What does the law of conservation of mass state?

Back

Matter cannot be created or destroyed in a chemical reaction.

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What does a yield sign (→) indicate in a chemical equation?

Back

It indicates the direction of the reaction, showing that reactants are converted to products.