AQA Trilogy chemistry paper 2

How is distilled water different to sea water?

• it's a mixture

• it's a formulation

• it boils at 100 degrees C

• it freezes over a range of temperatures

• it is more salty

Tags

NGSS.HS-ESS2-5

Why is distilling sea water to make drinking water expensive?

• uses a lot of chemicals

• it's slow

• needs expensive equipment

• takes a lot of energy

Tags

NGSS.HS-ETS1-3

NGSS.HS-ESS3-2

What does LCA stand for?

• Live cycle assignment
• Life cycle assignment
• Life circle assessment
• Life cycle assessment
• Live cycle assessment

Tags

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

NGSS.HS-ESS3-4

What does a LCA assess?

• the carbon footprint
• the energy needed for a process
• the pollution
• the sustainability of a product
• the environmental impact of a product

Tags

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

Give one way that CO₂ emissions can be reduced when manufacturing a plastic bottle?

• use recycled plastic

• recycle the bottle

• use thicker plastic

• burn it afterwards

• sell it locally

Tags

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

NGSS.HS-ESS3-4

Give a difference between pure and potable water?

• Pure water is suitable for drinking
• Potable water contains dissolves solids & chlorine
• Pure water contains dissolved solids & chlorine
• Potable water is not safe to drink

What is the relative formula mass of CO₂?

• 44
• 32
• 16
• 56

1 dm³ is equal to how many cm³ ?

• 100

• 500

• 1000

• 2000

If a Reversible Reaction is Exothermic one way what will it be the Other way?

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

What is Le Chatelier's Principle?

• If you change the Conditions of a Reversible Reaction at Equilibrium the system will try to Counteract that change

• If you change the Conditions of a Reversible Reaction at Equilibrium the system will Accelerate the Change

Tags

NGSS.HS-PS1-6