Atoms and Elements
Separating Mixtures
Periodic Table
States of Matter
Acids and Alkalis
100

What is the chemical formula for Carbon dioxide?

CO2

100

What method of separation separates an insoluble solid from a liquid?

Filtration.

100

Name 3 properties of metals.

Malleable

Sonorous

High melting/boiling point

Good conductors of electricity

100
What is the process called when a solid turns into a liquid?

Melting.

100

Give an example of an acidic and alkaline substance in everyday life.

Acidic - Lemon juice, fizzy drinks etc.

Alkali - Baking soda, cleaning products etc.

200

What 3 subatomic particles are found in an atom?

Protons, Neutrons and Electrons

200

What method of separation is often used in forensic science as it separates different components in a mixture (e.g. different inks in a pen)?

Chromatography.

200

Name 3 properties of non-metals.

Brittle

Poor conductors of electricity

Low melting/boiling points

200

What is the process called when a liquid turns into a gas?

Evaporation/boiling.

200

If something is pH 2, is it acidic or alkaline? And is it strong or weak?

Strongly acidic.

300

Which subatomic particle have a neutral charge?

Neutrons.

300

What method of separation separates a mixture of different liquids based on their boiling points?

Distillation.

300

Who is known as the 'father' of the periodic table?

A) Mendeleev

B) Einstein

C) Netwon

A) Mendeleev

300

What is the process called when a gas turns into a liquid?

Condensation.
300

What pH value represents a neutral solution?

pH 7.
400

What is the chemical formula for water?

H2O

400

What is the difference between a pure and impure substance?

Pure - only 1 type of element or compound

Impure - mixture of different elements or compounds

400

How are elements arranged in the periodic table?

Increasing atomic number.

400

Which state of matter has a fixed shape and volume?

Solid.

400

Name an example of a neutral substance in everyday life.

Milk and water.

500

What is the difference between a compound and a mixture? )Think about if the substance is chemically bonded or not?)

Compounds: 2 or more elements that are chemically bonded.

Mixtures: 2 or more substances that are not chemically bonded (can be physically separated).

500

Here are 2 substances: Gold and Seawater

Which is pure and which is impure?

Pure - Gold

Seawater - Impure

500

What is the difference between a physical and chemical property of an element?

Physical - Characteristics that can be observed or measured.

Chemical - How a substance reacts with other substances.

500

Which state of matter generally has the highest density?

Solids.

500

What does an indicator do in chemistry?

Tells us the pH/ how acidic or alkaline a substance is.