Chapter 2 Test Review

Front

A covalent bond is formed as the result of...

Back

sharing electrons

Front

Water molecules are polar, meaning...

Back

water has a partial positive & negative charge.

Front

Arsenic is an element with an atomic mass of 75 and an atomic number of 33. How many neutrons does it have?

Back

42

Front

What makes up a molecule of water?

Back

Two atoms of hydrogen and one atom of oxygen.

Front

Which of the following is a compound? hydrogen, oxygen, nitrogen, water

Back

water

Front

Which property of water allows an insect to walk on water?

Back

surface tension

Front

Substances that consist of only one type of atom are called…

Back

elements

Front

If an atom contains 11 protons and 12 neutrons, its atomic number is...

Back

11

Front

Which property of water allows it to stick to a spider web?

Back

cohesion

Front

The Periodic Table shows elements arranged by their...

Back

atomic number