PS Chemistry Sem Review

Question 1

What type of change is breaking glass?

Accepted Answer

physical

Question 2

Density is the ratio of:

Accepted Answer

mass/volume

Question 3

What is the chemical state of matter?

Accepted Answer

gas

Question 4

What does a roman numeral show?

Accepted Answer

oxidation of a transition

Question 5

What is the electron configuration?

Accepted Answer

1s2, 2s2, 2p6

Question 6

What chemical property is shampooing your hair?

Accepted Answer

reacting

Question 7

Atoms with the same atomic number but different atomic mass are called:

Accepted Answer

isotopes

Question 8

What is the location (group and period).

Accepted Answer

16, 2

Question 9

How many Hydrogen atoms are in 4 H2O?

Accepted Answer

8

Question 10

Which group in the Periodic Table contains elements that are all gases?

Accepted Answer

18

Question 11

Electromagnetic waves with the longest wavelengths are ______

Accepted Answer

radio waves

Question 12

If the pH of a substance is 5, what is the concentration of H+ ions?

Accepted Answer

10-5

Question 13

How many neutrons does this element have?

Accepted Answer

7

Question 14

What pH is the most acidic?

Accepted Answer

1

Question 15

Evaporation occurs when:

Accepted Answer

a liquid changes to a gas

Question 16

What is the name of the element?

Accepted Answer

oxygen

Question 17

What is the measure of the average kinetic energy in an object?

Accepted Answer

temperature

Question 18

Which is NOT a method of heat transfer?

Accepted Answer

insulation

Question 19

List the phases of water in order, from the slowest movement to fastest movement.

Accepted Answer

solid-liquid-gas

Question 20

What has a definite size and not a definite shape?

Accepted Answer

liquid

Question 21

How does heat flow?

Accepted Answer

high temp to low

Question 22

What is the layer of the sun that gives off light?

Accepted Answer

photosphere

Question 23

The type of wave that can be used to transmit your voice and to cook your food?

Accepted Answer

microwave

Question 24

What letter is pointing to the Sun?

Accepted Answer

E

Question 25

What does the 4 represent in 4 H2O?

Accepted Answer

coefficient

Question 26

In Boyle’s Law, Pressure and Volume are:

Accepted Answer

inversely related

Question 27

The identity of an element is determined by its number of

Accepted Answer

protons

Question 28

Which has the least energetic molecules?

Accepted Answer

solid

Question 29

How many protons does it have?

Accepted Answer

8

Question 30

What physical property is aluminum foil?

Accepted Answer

malleability

Question 31

What kind of bond is the compound VSe?

Accepted Answer

ionic transition

Question 32

What is the mass number of an atom, which contains 28 protons, 28 electrons, and 34 neutrons?

Accepted Answer

62

Question 33

What is the loop electron configuration for Copper?

Accepted Answer

2, 8 , 17, 2

Question 34

What is the name of LiC2H3O2 ?

Accepted Answer

Lithium Acetate

Question 35

How many electrons does this element have?

Accepted Answer

10

Question 36

A proton has approximately the same mass as

Accepted Answer

a neutron

Question 37

What is proof of the Big Bang Theory?

Accepted Answer

the Hubble Red Shift

Question 38

In Charles’s Law, Temperature and Volume are:

Accepted Answer

directly related

Question 39

What feature of the sun proves solar rotation?

Accepted Answer

sun spots

Question 40

What pH is the most basic?

Accepted Answer

13

PS Chemistry Sem Review

Questions 40

PS Chemistry Sem Review

Questions 40