Chemistry Quiz 1

Question 1

What does WHMIS stand for?

Answer 1

Workplace Hazardous Materials Information System

Question 2

What does SDS stand for?

Answer 2

Safety Data Sheet

Question 3

Popsicle sign?

Answer 3

Gases under pressure

Question 4

Flame

Answer 4

Flammable / Fire Hazard

Question 5

Flame with a circle

Answer 5

Oxidizing Hazards

Question 6

Skull

Answer 6

Cause death or toxicity

Question 7

Person with heart attack

Answer 7

Health Hazardous

Question 8

Beyblade

Answer 8

Biohazardous

Question 9

spilling acid

Answer 9

Corrosion

Question 10

explosion

Answer 10

explosion or reactivity

Question 11

dying fish

Answer 11

May cause damage to the aquatic environment

Question 12

exclamation mark

Answer 12

May cause less serious health effects or damage to ozone layer

Question 13

Atomic number equals the number of _______ or _________

Answer 13

Protons or Electrons

Question 14

Atomic mass equals the number of _______ + ________

Answer 14

Protons + Neutrons

Question 15

Matter

Answer 15

Anything with mass and volume takes up space

Solid, Liquid, Gas

Question 16

Mixture

Answer 16

matter that can be separated by physical means.

does not have a definite composition

(Heterogeneous or Homogeneous)

Question 17

Heterogeneous Mixture

Answer 17

• Different components of mixture are visible

ex. salad dressing, orange juice, chilli

Question 18

Homogeneous Mixture

Answer 18

• Different components are not visible

ex. Iced tea, Tap water, Sugar water

Question 19

Pure substance

Answer 19

Matter that has a definite composition

(element or compound)

Question 20

Element

Answer 20

• Cannot chemically be broken down

ex. Oxygen, Sodium, Gold

Question 21

Compound

Answer 21

• Two or more elements that are chemically combined

ex. water, salt

Question 22

Who made The Billiard Ball Model?

Answer 22

John Dalton

Question 23

Who made The Raisin Bun Model?

Answer 23

J.J. Thomson

Question 24

Who made The Solar System Model?

Answer 24

Ernest Rutherford

Question 25

Who made the Energy Level Model?

Answer 25

Neils Bohr

Question 26

Isotope

Answer 26

Different forms of the SAME element, only the number of neutrons changes.

Question 27

What is the relationship between the period number and the number of energy levels?

Answer 27

Period number = Number of energy level

Question 28

What is the relationship between the group number and the number of valence electrons?

Answer 28

Group number = Number of valence electrons

Question 29

What is the relationship between the maximum number of electrons in each energy level and the number of atoms in each period of the periodic table?

Answer 29

The maximum number of atoms = the maximum number of elements in a period.

Question 30

What is the relationship between the electron structure of group 1 ions and the electron structure of the nearest noble gas?

Answer 30

The electron structure of group 1 ions and the electron structure of the nearest noble gas have the same number of protons when you subtract 1 atom from group 1.

Question 31

What is the evidence that noble-gases electron structure is stable?

Answer 31

The noble-gases electron structure is stable because they rarely share/gain or lose electrons.