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Flashcards in phys6final9 Deck (17):
1

A solution that contains equal numbers of hydrogen ion and hydroxide ions is?

Neutral

2

A peptide bond is formed?

When two amino acids are bonded together

3

A molecule composed of glycerol, two fatty acids, and a phosphate group is a

phospholipid

4

Approximately 96% of the body's mass is composed of the elements

C, H, O, N

5

One of the most important and most abundant inorganic compounds in the body is

water

6

A substance with a pH of 5

has 10 times fewer H+ than a substance with a pH of 4

7

The most abundant chemical element in the human body is

Oxygen

8

Which of the following is essential for aerobic production of ATP from glucose?

Oxygen

9

If the outer electron shell is complete, the atom is

chemically stable

10

A covalent bond is formed

when atoms share one or more electrons

11

The mass number of the sodium atom is 23. Therefore, it has 12 neutrons and how many protons?

11

12

The chemical reactivity of an atom is determined by

the number and arrangement of electrons in the outermost shell

13

helium is a chemically stable gas because

its outermost shell is completely filled with electrons.

14

The most common molecule in the body that has polar covalent bonds is

water.

15

The collision energy required for a chemical reaction is called its

activation energy

16

An increase in temperature will increase the rate of a chemical reaction because it increases the _____
of the substances involved

speed

17

Oxidation is the

removal of electrons from a molecule.