Chemistry Quiz 2

Polar means unequal sharing of electrons.

What is the average atomic mass of Neon?

The dashed-line bond in this picture is a (hydrogen/covalent) bond.

Bases are number _-_ on the pH scale.

Acids are numbers _-_ on the pH scale.

The number for shell patterns in a Bohr model is 2-8-8?

What is cohesion?

How do calculate the number of neutrons?

Acids have more ____

Covalent Bonds:

The pH 1 is 10 times more acidic than pH 2 because of the hydroxide ions concentration

Bases have  more...

Water is a nonpolar molecule

The hydrogen bond in water is a bond between

Valence electrons are located _________.

The pH scale goes from 0-14 with ___ being neutral.

Name the 4 major elements.

What is the difference between N-15 and N-14?

What is adhesion?

Elements in group 13 have _________ valence electrons.

What are the relative charges on a water molecule?

Ionic Bonds:

What is C₆H₁₂0₆?

What are neon's period and group on the periodic table?

The atomic number is the number of protons and electrons.

Stable atoms have

Water is polar

In chemistry, a buffer

The slight positive and negative charges on opposite ends of the molecule make water _____.

Which is an example of a solute?