Chemical Equations

Question 1

Chemical Equations show Reactants and ____________.

Answer 1

Products.

Question 2

Total Mass of Reactants = Total Mass of ___________.

Answer 2

Products.

Question 3

What does (s) stand for?

Answer 3

Solid.

Question 4

What does (l) stand for?

Answer 4

Liquid.

Question 5

What does (g) stand for?

Answer 5

Gases.

Question 6

What does (aq) stand for?

Answer 6

Aqueous Solution.

Question 7

A Mixture is made up of Two or More Substances that are not _______________ Combined Together.

Answer 7

Chemically.

Question 8

What are the Three Ways Mixtures can be Separated?

Answer 8

Filtration, Crystallisation or Distillation.

Question 9

What is Fractional Distillation?

Answer 9

Separating Liquids using a Fractionating Column.

Question 10

What is Paper Chromatography?

Answer 10

Substances Dissolve and go to the Chromatography Paper.

Question 11

What are Atoms made up of?

Answer 11

Protons, Neutrons and Electrons.

Question 12

What is the Relative Charge of Protons?

Answer 12

+1.

Question 13

What is the Relative Charge of Electrons?

Answer 13

-1.

Question 14

What is the Relative Mass of Both a Proton and a Neutron?

Answer 14

1.

Question 15

Atomic Number = Number of ___________

Answer 15

Protons.

Question 16

Number of Neutrons = Mass Number - __________ Number

Answer 16

Atomic.

Question 17

Atoms that Gain Electrons form _____________ Ions.

Answer 17

Negative.

Question 18

If Atoms Lose Electrons they Form _____________ Ions.

Answer 18

Positive.

Question 19

Isotopes are Atoms of the Same Element with Different Numbers of _____________.

Answer 19

Neutrons.

Question 20

Electrons in an Atom are Arranged in Energy Levels or _________.

Answer 20

Shells.

Question 21

The Number of Electrons in the ____________ Shell of an Element’s Atom Determines the Way in which the Elements React.

Answer 21

Outermost.