Year 7 Chemistry: Elements, Mixtures & Compounds + Separating Substances Revision

Question 1

A substance formed when 2 or more elements are chemically bonded together is a

Accepted Answer

Compound

Question 2

I am Malleable, Magnetic and I have a high melting and boiling point, what am I?

Accepted Answer

Metal

Question 3

The Solid that has dissolved in a liquid to make a solution is a...

Accepted Answer

Solute

Question 4

Air is a....

Accepted Answer

Mixture

Question 5

What Process separates different ink dyes from each other?

Accepted Answer

Chromatography

Question 6

What are the two processes that happen in distillation, in the correct order?

Accepted Answer

Evaporation & Condensation

Question 7

The Chemical Formula for Magnesium Oxide is....

Accepted Answer

MgO

Question 8

What process separates ethanol from water?

Accepted Answer

Distillation

Question 9

I dissolve 10g of sugar into 100g of water. What is the mass of the solution?

Accepted Answer

110g

Question 10

What Process separates an insoluble solid from a liquid

Accepted Answer

Filtering

Question 11

Krypton kills Superman, why isn't this scientifically correct?

Accepted Answer

Krypton isn't reactive

Question 12

What is the full name of the condenser in Distillation?

Accepted Answer

Liebig Condenser

Question 13

What Process separates dissolved sugar from tea?

Accepted Answer

Evaporation

Question 14

Something that will not dissolve in a liquid is

Accepted Answer

Insoluble

Question 15

The only metal that is liquid at room temperature is

Accepted Answer

Mercury

Question 16

Seawater is a...

Accepted Answer

Mixture

Question 17

I am Brittle, Non-Magnetic and I have a low melting and boiling point, what am I?

Accepted Answer

Non-Metal

Question 18

A substance formed when 2 or more elements are in the same space but not chemically bonded is a

Accepted Answer

Mixture

Question 19

The Majority of Elements in the Periodic Table are....

Accepted Answer

Metals

Question 20

A substance that contains only one type of atom is a....

Accepted Answer

Element

Questions 20