Chemistry Midterm Review

Front

Metalloids can be described as...

Back

Characteristics of metals and nonmetals.

Front

What family is sodium (Na) in?

Back

Alkali metals.

Front

Which particles are represented by the dots in Lewis dot structures?

Back

Valence electrons.

Front

What is the answer to the following problem rounded to the correct number of significant figures? 10.02 x 4.5?

Back

45.

Front

What molecular shape does CH4 have?

Back

Tetrahedral.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

Define ionic bond.

Back

A chemical bond formed between two ions with opposite charges.

Front

What is the pH scale?

Back

A scale used to measure the acidity or basicity of a solution.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed.