Chapter 1.01

Question 1

What are always in “Aq” state?

Answer 1

Acid

Question 2

What is Stoichemistry

Answer 2

Reactions between different amounts of molecules during reactions

Question 3

What are atoms?

Answer 3

Smallest particle of an element to show properties of the element.

Question 4

What are native form atoms?

Answer 4

Found by itself in nature

Question 5

Give two atoms found in native form.

Answer 5

Nitrogen and Gold.

Question 6

What are chemical compounds?

Answer 6

Multiple elements held in fixed proportion to each other. The bonds between the elements change it’s property.

Question 7

What is “Na” in it’s native form?

Answer 7

Dangerous metal that can react with water

Question 8

What is “Cl2” in it’s native form?

Answer 8

Toxic gas

Question 9

What is the formula symbol for Glucose

Answer 9

C6H12O6

Question 10

What is the formula symbol for ammonium sulphade

Answer 10

(NH4)2SO4

Question 11

What are stoichmetric coefficient

Answer 11

The coefficient in-front of an element.

Question 12

What is the formula for atom economy

Answer 12

Mass of desired product/Total mass of product x 100

Question 13

What are mixtures

Answer 13

Mixtures are where chemicals are interspersed in each other but still maintain different characteristic property and at the same time they hold different compositions.

Question 14

Define Homogenous

Answer 14

Compositions are uniformly dispersed.

Question 15

Define Heterogeneous

Answer 15

Compositions are unevenly dispersed.

Question 16

What is paper chromotrography?

Answer 16

It uses “the property of absorption of solid phase” to separate stuff such as food colouring.

Question 17

What are inter-molecule particles?

Answer 17

Particles between molecule

Question 18

What is the impact of inter-molecular particles?

Answer 18

They determine the state of matter and can change due to temperature and weather.

Question 19

What is the formula of kinetic energy?

Answer 19

KE = 1/2 mv^2

Question 20

What kind of relation is there between mass and velocity for gasses and liquids in regards to kinetic energy.

Answer 20

Inverse linear relation == More mass results in less velocity in diffusion.

Question 21

Liquid __ into Gas

Answer 21

Evaporates

Question 22

Gas __ into Liquid

Answer 22

Condensates

Question 23

Solid __ into Liquid

Answer 23

Melts

Question 24

Liquid __ into solid

Answer 24

Freezes

Question 25

Solid __ into gas

Answer 25

Sublimation

Question 26

Gas __ into Solid

Answer 26

Deposition.

Question 27

What is the difference between boiling and evaporation.

Answer 27

Boiling happens under surface while evaporation only happens at surface.

Question 28

What does high pressure do to the boiling point?

Answer 28

Increase it.

Question 29

Why does the line plateu in a freezing/melting graph

Answer 29

The state is changing.

Question 30

When is the substance always “Aq”

Answer 30

If it is water or acid

Question 31

State of KNO3?

Answer 31

Solid

Question 32

State of H2SO4?

Answer 32

AQ

Question 33

State of NANO3?

Answer 33

Aq

Question 34

State of CaSO4?

Answer 34

S

Question 35

State of PB(NO3)2

Answer 35

Aq

Question 36

State of NaCl

Answer 36

S

Question 37

Why does steam cause more burns than water?

Answer 37

Steam condenses on skin, releasing energy.

Question 38

Why does some solid float on water?

Answer 38

They are less dense.