Maria Rules

Question 0

What is an element?

Answer 0

An element is only made up of one atom and cannot be split apart into any simpler substance by any chemical means.

Question 1

What are the metals in the reactivity series? Most to least reactive.

Answer 1

Potassium 
Sodium
Lithium
Calcium
Magnesium
Aluminium
Carbon
Zinc
Iron
Tin
Lead
Hydrogen
Copper
Silver
Gold
Platinum

Question 2

What is a compound?

Answer 2

A combination of two or more elements and contains more than one type of atom and can be split apart by chemical means.

Question 3

Why are the noble gasses useful?

Answer 3

Because they don’t react to anything.

Question 4

Top three metals in the earths crust:

Answer 4

Oxygen
Silicon
Aluminium

Question 5

Two top elements in the earths atmosphere:

Answer 5

Nitrogen

Oxygen

Question 6

Too element in the universe:

Answer 6

Hydrogen

Question 7

Top three elements in your body:

Answer 7

Oxygen
Carbon
Hydrogen

Question 8

Three most expensive metals listed:

Answer 8

Gold
Silver
Nickel

Question 9

What do lithium sodium and potassium all have I common when they react with water

Answer 9

They fizz, float and move about

Question 10

What does rubidium do when it reacts with water?

Answer 10

Bigger flame than potassium and small explosion at the end

Question 11

What does Caesium do when it reacts with water?

Answer 11

Big flame. EXPLOSION.

Question 12

Why shouldn’t we say we have calcium in our bodies?

Answer 12

Because we don’t have it in our body, we only have compounds containing it.

Question 13

What are the threes properties that are the same for all noble gasses?

Answer 13

They are all colourless
They don’t react with oxygen
Don’t react with hydrochloride acid.

Question 14

How do noble gas boiling points change as you go down the group?

Answer 14

The boiling points get higher.

Question 15

Two facts about helium:

Answer 15

Takes lots of energy to extract.

Helium particles are small and light.

Question 16

Does copper conduct?
What does it look like?
Is it an alkali or a transition metal?

Answer 16

Yes
Pinkies brown and shiny
Transition

Question 17

Does lithium conduct electricity?
What does it look like?
Is it an alkali or a transition metal?

Answer 17

Yes
Shiny when freshly cut and tarnishes in air
Alkali

Question 18

Does gold conduct electricity?
What does it look like?
Is it an alkali or a transition metal?

Answer 18

Yes
Shiny
Transition metal

Question 19

Does potassium conduct electricity?
What does it look like?
Is it an alkali or a transition metal?

Answer 19

Yes
Shiny when freshly cut, tarnishes quickly.
Alkali

Question 20

Does rhodium conduct electricity?
What does it look like?
Is it an alkali or a transition metal?

Answer 20

Yes
Silver coloured and shiny
Transition

Question 21

Does sodium conduct electricity?
What does it look like?
Is it an alkali or aTransition metal?

Answer 21

Yes
Shiny when cut and tarnishes quickly
Alkali metals

Question 22

What property have the halogens got in common?

Answer 22

They all smell of swimming pool

Question 23

Give one way the halogens are different from the noble gasses

Answer 23

They are not all gasses and aren’t colourless.

Question 24

How do you extract chlorine from rock salt?

Answer 24

You crush the rock salt up and put it in a beacon of warm water and stir until it has dissolved. Filter the solution into a separate beaker and place two electrodes to wires by crocodile clips . Pass an electric current through the electrodes and into the solution. The electrode that fizzes is where the chlorine is released.

Question 25

Give the names of six non metals found in the human body.

Answer 25

``` Hydrogen Carbon Oxygen Sulphur Nitrogen Phosphorus. ```

Question 26

Name two forms of carbon

Answer 26

Diamond and graphite.

Question 27

How do you test with hydrogen?

Answer 27

Pops with a lighted splint.

Question 28

How do you test for oxygen?

Answer 28

Relighted glowing splint.

Question 29

How do you test for carbon dioxide?

Answer 29

Turns limewater milky.

Question 30

Which property of metals tells you platinum is a metal?

Answer 30

It conducts electricity well.

Question 31

Is a compound joined chemically or is it mixed?

Answer 31

Joined chemically.

Question 32

Why do we use nitrogen instead of oxygen in crisp packets?

Answer 32

Because it doesn't react.

Question 33

Give three sources of carbon dioxide in the atmosphere caused by human activity:

Answer 33

- Burning fuel - Deforestation - Factories producing electricity

Question 34

Why is it important to have a carbon monoxide detector in your home?

Answer 34

I case you have a gas leak.

Question 35

What does prefix poly mean?

Answer 35

Several

Question 36

What does prefix mono mean?

Answer 36

One

Question 37

What is a molecule?

Answer 37

2 or more atoms strongly attached.

Question 38

Properties of solids:

Answer 38

Particles touch each other | Particles are arranged in a regular pattern

Question 39

Properties of metals:

Answer 39

Metals conduct electricity and heat | Solid at room temperature apart from mercury.

Question 40

Uses of copper:

Answer 40

Wiring, machinery, Statue of Liberty, heating and cooling systems, telecommunications links, coins.

Question 41

Uses for sodium chloride:

Answer 41

Seasoning, preservation, medicinal disinfection.

Question 42

How does the structure of copper help explain that copper conducts heat?

Answer 42

Atoms vibrate when heated and the vibrations pass along the structure conducting heat through metal.

Question 43

How does the structure of copper help explain that copper conducts electricity?

Answer 43

Electrons move around the structure and can conduct electricity.