Make 1, Take 1

Front

What is the charge of an ion?

Back

The charge of an ion indicates whether it has lost or gained electrons.

Front

Balance the equation: H2 + N2 → ?

Back

3H2 + N2 → 2NH3

Front

What is the molar mass of Pb(SO4)?

Back

303.27 g/mol

Front

How many electrons does Silicon (Si) contain?

Back

Silicon (Si) contains 14 electrons.

Front

What is the right side of a chemical equation called?

Back

The right side of a chemical equation is called the products.

Front

Define atomic number.

Back

The atomic number is the number of protons in the nucleus of an atom.

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 the difference between mass number and atomic number?

Back

Mass number is the total number of protons and neutrons in an atom, while atomic number is just the number of protons.

Front

What does it mean for an atom to be neutral?

Back

An atom is neutral when it has an equal number of protons and electrons.

Front

What is the formula for calculating molar mass?

Back

Molar mass is calculated by summing the atomic masses of all atoms in a molecule.