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Question 1

What is a element?

Answer 1

A Substance made from one type of atom.

Question 2

What is a proton?

Answer 2

A positively charged particle that makes up part of an atom.

Question 3

What is a neutron?

Answer 3

A neutrally charged particles that makes up part of an atom

Question 4

What is an electron?

Answer 4

A negatively charged particles that is part of an atom.

Question 5

How many different types of atoms are there?

Answer 5

118

Question 6

What is a chemical mixture?

Answer 6

Two or more substances not chemical bonded together which can be separate.

Question 7

What is a chemical compound?

Answer 7

Two or more elements chemically bonded after a chemical reaction.

Question 8

What are the five hints for a chemical reaction taking place?

Answer 8

1: Fizzing or bubbling
2: Change in colour
3: Change in odour
4: Change in temperature
5: A solid is formed

Question 9

What determines what element something is?

Answer 9

The number of protons the atom has.

Question 10

What are the reactants in a chemical reaction?

Answer 10

The materials you start with in a chemical reaction.

Question 11

What are the products in a chemical reaction?

Answer 11

The materials you end with in a chemical reaction.

Question 12

What does aqueous mean?

Answer 12

It means dissolved in water or a solution.

Question 13

What is a word equation?

Answer 13

An equation that contains only words.

Question 14

What does dissolving mean?

Answer 14

When a solute is broken down in a solvent to form a solution.

Question 15

What does solute mean?

Answer 15

Typcally a solid that is dissolved to form a solutions but liquids and gasses can be solutes aswell.

Question 15

What does solvent mean?

Answer 15

A solvent is any substance, usually liquid, which is capable of dissolving one or several substances, thus creating a solution.

Question 16

What does solution mean?

Answer 16

A solution is where a solute is dissolved in a solvent.

Question 17

What does soluble mean?

Answer 17

It can be dissolved.

Question 18

What does insoluble mean?

Answer 18

It can’t be dissolved

Question 19

What is the melting point of a substance?

Answer 19

The temperature at which the substance turns from a solid to a liquid and vice versa.

Question 20

What is the boiling point of a substance?

Answer 20

The temperature at which the substance turns from a liquid to a gas and vice verse

Question 21

What is distillation?

Answer 21

The process of separating two or more liquids using that fact they have different boiling points.

Question 22

What is decanting?

Answer 22

The process of separating two or more liquids using that fact that they are immiscible.

Question 23

What does immiscible mean?

Answer 23

When two liquids are incapable of forming a homogeneous mixture when mixed.

Question 24

What does miscible mean?

Answer 24

When two or more liquids are capable of forming a homogeneous mixture when mixed.

Question 25

What does homogeneous mean?

Answer 25

When a substance is identical wherever you sample it.

Question 26

How do you separate an insoluble solid from a liquid?

Answer 26

Filtering.

Question 27

How do you separate a soluble solid from a liquid?

Answer 27

Evaporation or crystallisation.

Question 28

What is the shell in an atom?

Answer 28

They are the rings around the nucleus of an atom where the electrons are.

Question 29

What is the nucleus of an atom?

Answer 29

It is the centre of the atoms where protons and neutrons are.

Question 30

What is the atomic number of an element?

Answer 30

It is the number which denotes the amount of protons and electrons that are in an atom/ element.

Question 31

What is the mass number of an element?

Answer 31

The relative combined mass of the protons and neutrons.

Question 32

What is the charge and relative mass of a proton?

Answer 32

Its charge is +1 and it has a relative mass of 1.

Question 33

What is the charge and relative mass of a neutron?

Answer 33

Its charge is 0 and it has a relative mass of 1.

Question 34

What is the charge and relative mass of an electron?

Answer 34

its charge is -1 and it has a relative mass of ~0 or 0.000054.

Question 35

What is an isotope?

Answer 35

An atom with the same number of protons but a different number of neutrons, different mass number same atomic number.

Question 36

What is the relative mass?

Answer 36

It's the weighted average of the mass of all the natural occuring isotopes with an element.