Unit 1 Chemistry

Question 1

What side of the periodic table are metals on?

Answer 1

Left hand side.

Question 2

What is the relative charge and relative mass of a proton?

Answer 2

Charge=+1 and Mass=1

Question 3

What is the relative charge and mass of a neutron?

Answer 3

Charge=0 Mass=1

Question 4

What is the relative charge and mass of an electron?

Answer 4

Charge=-1 Mass=0.0005

Question 5

What is the structure of an atom?

Answer 5

The protons and neutrons are in the middle and the electrons revolve around it.

Question 6

What is the atomic number?

Answer 6

The number of protons.

Question 7

What is the mass number?

Answer 7

The number of protons and neutrons.

Question 8

What is it called when the number of neutrons in an atom differs?

Answer 8

An isotope.

Question 9

What do atoms have equal number of?

Answer 9

Protons and neutrons.

Question 10

Atoms of one element always have the same number of ………..

Answer 10

Protons

Question 11

How big is the nucleus of an atom?

Answer 11

Small compared to the atom.

Question 12

In a scientific form of an element where do you find the mass number and atomic number?

Answer 12

The mass number is at the top with the protons and neutrons. The atomic number is at the bottom which is the protons.

Question 13

What are the columns on a periodic table called?

Answer 13

Groups

Question 14

What is the same about elements in the same group?

Answer 14

They got the same number of electrons.

Question 15

What does the group number stand for?

Answer 15

The number of electrons it has.

Question 16

How are electrons arranged in an atom?

Answer 16

Around the nucleus.

Question 17

How are electrons shells filled?

Answer 17

The innermost are first.

Question 18

What are the maximum number of electrons in a shell?

Answer 18

One is 2, second is 8 and the third one is 8

Question 19

What is the formula for oxygen?

Answer 19

O2. It has two oxygen atoms.

Question 20

What is the formula for carbon monoxide?

Answer 20

CO. One carbon atom and one oxygen atom.

Question 21

What is the formula for carbon dioxide?

Answer 21

CO2. One carbon atom and two oxygen atoms.

Question 22

What is the formula for water?

Answer 22

H2O. Two hydrogen atoms and one oxygen atom.

Question 23

What is the formula for Sulfur dioxide?

Answer 23

SO2. One sulphur atom and two oxygen atoms.

Question 24

What is the formula for Sulfuric acid

Answer 24

H2SO4. Two hydrogen, one sulphur and four oxygen atoms.

Question 25

What is the formula for sodium carbonate

Answer 25

NaCO3. One sodium, one carbon and three oxygen atoms

Question 26

What is an element made of

Answer 26

One type of atom

Question 27

What is a compound made of

Answer 27

Two or more different types of atom bounded together

Question 28

What is a molecule made of

Answer 28

2 or more atoms bounded together

Question 29

What is a mixture made of

Answer 29

Several substances not bounded together

Question 30

What is the pH of acids

Answer 30

1-6. The lower the number the stronger

Question 31

What nutralizes acids

Answer 31

Basses

Question 32

What are acids when they strong

Answer 32

Corrosive

Question 33

What are acids when they are weak

Answer 33

Irritant

Question 34

What color will a strong acid go

Answer 34

Red

Question 35

What color will a weak acid go

Answer 35

Yellow

Question 36

What color will a strong alkaline go

Answer 36

Purple

Question 37

What color will a weak alkaline go

Answer 37

Blue

Question 38

What color will neutral go

Answer 38

Green

Question 39

What are basses

Answer 39

They neutralize acids

Question 40

What is a base that desolves in water

Answer 40

An alkaline

Question 41

What is the pH of alkalines

Answer 41

8-14

Question 42

What is the chemical reaction called between an acid and an alkaline

Answer 42

Neutralization

Question 43

What is the pH of salt and water

Answer 43

7

Question 44

How to write the reaction between an acid and alkaline

Answer 44

Acid+Alkaline = salt+ water

Question 45

How do you name a salt

Answer 45

First see what metal it came from. Second see what acid it came from

Question 46

What is the second part salts name of hydrochloric acid

Answer 46

Chloride

Question 47

What is the salt name’s name for sulphuric acid

Answer 47

Sulphate

Question 48

What is the salt’s name for Nitric acid

Answer 48

Nitrate

Question 49

When an acid is mixed with carbonate

Answer 49

Salt, water and carbon dioxide

Question 50

What does salt and a metal make

Answer 50

Salt and hydrogen

Question 51

What does acid and metal hydroxide make

Answer 51

Salt and water

Question 52

What does metal and metal oxide make

Answer 52

Salt and water

Question 53

What does acid and metal carbonate make

Answer 53

Salt, water and CO2

Question 54

What can neutrialsation reactions do

Answer 54

The cure indigestion with a tablet