Chemistry: Semester 1 Review

Front

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

Back

2 Al + 6 HCl --> 3 H2 + 2 AlCl3

Front

What element has 76 protons and 114 neutrons?

Back

Osmium-190

Front

What is the name for MgF2?

Back

magnesium fluoride

Front

Who is known for the 'Plum Pudding' model of the atom?

Back

J.J. Tomson

Front

What are the three basic parts of an atom?

Back

Protons, neutrons, electrons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is a chemical bond?

Back

A lasting attraction between atoms that enables the formation of chemical compounds.

Front

Define ionic bond.

Back

A type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

Front

Define covalent bond.

Back

A type of chemical bond that involves the sharing of electron pairs between atoms.