ILS mega quiz

What is a way to reduce plastic pollution

• throw it into the sea

• put it in a composter

• recycle it

• dispose of it in the "burnable" bin

Which of the following is biodegradeable?

• polyester

• concrete

• plastic

• banana peel

Which of the following is an example of a chemical change?

• pouring milk into a bowl of cereal

• placing potassium in water

• ice melting into water

• pouring water into a container with oil

Choose the false statement about combustion?

• oxygen is required for combustion to occur

• combustion happens in fuel cells

• come of the resulting energy is released as heat

• combustion continues until at least one reactant is used up

How is limewater affected by the addition of carbon dioxide>

• It starts to bubble

• It changes colour

• it gets darker

• It turns milky white

Which is NOT a product of incomplete combustion?

• carbon dioxide

• soot

• carbon monoxide

Which of the following is NOT a contributor to global warming?

• photosynthesis

• burning fossil fuels

• respiration

• deforestation

What is a quality of endothermic reactions?

• it releases heat

• it takes in heat

• it can produce light

• the resultant mixture must be cold

Which is the state symbol for a gas?

• (s)

• (l)

• (aq)

• (g)

What tells us the mass of products equal the mass of reactants?

• The law of conservation of mass

• The law of conservation of energy

• Newtons 2nd law

• Hooke's law