chemistry

What is the green house gases?

• CO₂

• SO₂

• Methane

• NO₂

gr__n

• ee

• re

• en

• ge

What number

• Zero

• One

• ten

g___

• ray

• ay

• yar

A student uses the apparatus shown to find out how many different pigments are in leaves.

What is this separation method called?

• Chromatography

• Distillation

• Filtration

• Evaporation

The diagrams show an investigation into the conditions needed for rusting of iron nails. The nails in tubes 1 and 2 rust within a few days.

Which conditions are required for rusting?

• Air alone

• Air and water

• Salt and water

• Water alone

Con?

• kangaroo

• king

• rabbit

Group 1 elements have exciting reactions with water.

• false

• true

It's

• orange

• yellow

• ogeran

Is it red

• No, it isn't

• Yes, it is

• Yes