The Chemistry of Life, Part 1 (BIO156)

Question 1

How many electrons in orbit around the nucleus of the element Carbon ?

Accepted Answer

6

Question 2

Which type of molecular bond is weakest?

Accepted Answer

Hydrogen bond

Question 3

What is the most abundant element in the human body?

Accepted Answer

Oxygen

Question 4

The following two atoms are ions, true or false?

Accepted Answer

True

Question 5

What type of bond is this in the following image?

Accepted Answer

hydrogen

Question 6

What is this SYSTEM called?

Accepted Answer

Buffer System

Question 7

Which ionizing radiation is missing in this image?

Accepted Answer

gamma ray

Question 8

What does the Atomic Number signify?

Accepted Answer

Number of protons or electrons

Question 9

Why does this happen when oil and water are mixed?

Accepted Answer

d. Both a. and b.

Question 10

How many electron vacancies in this calcium atom?

Accepted Answer

6

Question 11

What is the general name for these types of hydrogen?

Accepted Answer

isotopes

Question 12

What makes this molecular of water POLAR?

Accepted Answer

unequal sharing of electrons

Question 13

What subatomic particle orbits the nucleus of an atom?

Accepted Answer

electron

Question 14

What makes these two molecules NON-POLAR?

Accepted Answer

equal sharing of eletrons

Question 15

Which type of molecular bond is strongest?

Accepted Answer

Covalent bond

Questions 15