Reactions

Front

What are the reactants in the equation 2Mg + O2 -> 2MgO?

Back

The reactants are Mg and O2.

Front

How many Hydrogen atoms are in 4H2O?

Back

There are 8 Hydrogen atoms.

Front

According to the law of conservation of mass, if 5 grams of Oxygen completely reacted with 10 grams of Hydrogen, how many grams of water should be produced?

Back

15 grams of water should be produced.

Front

Is the equation Al + O2 -> 2Al2O3 balanced?

Back

No, it is not balanced.

Front

Balance the equation: _Al + _HCl -> _H2 + _AlCl3

Back

2, 6, 3, 2.

Front

What is a chemical reaction?

Back

A process where reactants transform into products.

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 does the law of conservation of mass state?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a product in a chemical reaction?

Back

The substances formed as a result of a chemical reaction.

Front

What is a reactant in a chemical reaction?

Back

The starting substances that undergo change in a chemical reaction.