Chemistry Basics

Question 0

What charge do electrons have?

Answer 0

Negative/minus

Question 1

What does amu stand for?

Answer 1

Atomic mass unit

Question 2

Are anions positive or negative in charge?

Answer 2

Negative (negative nanny)

Question 3

How many electrons does carbon have?

Answer 3

Six

Question 4

Define covalent bond

Answer 4

Electrons are equally shared

Question 5

What is diffusion?

Answer 5

The movement of molecules from high concentration to low concentration

Question 6

Define electro-negativity

Answer 6

The more electronegative an atom, the more strongly the electrons are pulled toward it when in a sharing arrangement

Question 7

Define hydrogen bonds

Answer 7

The electrostatic attraction between an electronegative atom ( oxygen, nitrogen, fluorine) and a hydrogen atom attached to a electronegative atom

Question 8

Define an ionic bond

Answer 8

An electrostatic attraction between a cation (+) and an anion (-) (electrons are not shared)

Question 9

Define ionic bonds

Answer 9

The force of attraction between a positive and a negative ion

Question 10

Define osmosis

Answer 10

The diffusion of free water across a selectively permeable membrane

Question 11

Explain the octet rule

Answer 11

Atoms try to acquire a complete outer shell of electrons

Question 12

Define voltage

Answer 12

Electrical potential energy (a separation of opposite charges)

Question 13

Define polar

Answer 13

The uneven distribution of electrons

Question 14

How many electrons does hydrogen have?

Answer 14

One

Question 15

What are isotopes

Answer 15

Atoms with the same number of protons but different number of neutrons

Question 16

Mass number/atomic number is the sum of?

Answer 16

Protons and neutrons

Question 17

The sum of protons and neutrons is the?

Answer 17

Atomic number or mass number

Question 18

What charge do neutrons have?

Answer 18

Neutral/nil

Question 19

What mass do neutrons have?

Answer 19

1amu

Question 20

How many electrons does nitrogen have?

Answer 20

Seven

Question 21

Is non-polar, the even or uneven distribution of electrons?

Answer 21

Even

Question 22

How many electrons does oxygen have?

Answer 22

Eight

Question 23

p orbitals can hold a maximum of ? Electrons

Answer 23

Six

Question 24

What charge do protons have?

Answer 24

Positive

Question 25

What mass do protons have?

Answer 25

1amu

Question 26

s orbitals can hold a maximum of ? Electrons

Answer 26

Two

Question 27

The 4 key elements in the human body are?

Answer 27

Oxygen, carbon, hydrogen & nitrogen

Question 28

The element K is?

Answer 28

Potassium

Question 29

The element Na is?

Answer 29

Sodium

Question 30

What mass do electrons have?

Answer 30

Nothing, zero, nil

Question 31

The number of line bonds carbon is allowed?

Answer 31

4

Question 32

The number of line bonds hydrogen is allowed?

Answer 32

1

Question 33

The number of line bonds nitrogen is allowed?

Answer 33

3

Question 34

The number of line bonds oxygen is allowed?

Answer 34

2

Question 35

The order of orbitals is?

Answer 35

1s, 2s, 2p, 3s, 3p

Question 36

The rule of diffusion is?

Answer 36

A substance will diffuse from where it is more concentrated to where it is less concentrated

Question 37

Van der Waals interactions result when?

Answer 37

Electrons are not symmetrically distributed in a molecule