Indicators
The name of the scale use to describe the strengths of acids
What is the pH scale?
An object that is easily set on fire
What is flammable?
A reaction where a new substance is created
What is a chemical reaction?
The description of motion of particles in a solid
What is vibrating in one place?
(Accept any reasonable answers)
The name for a soluble base
What is an alkali?
A mixture of dyes that changes colour gradually over a range of pH
What is universal indicator?
An object that is able to destroy solid objects by chemical reaction
What is corrosive?
The reaction between an acid and a base
What is neutralisation?
The process that separates an insoluble solid from a liquid
What is filtration?
The acid found in human stomachs
What is hydrochloric acid?
The colour of litmus paper used to identify acids
What is blue?
An object that causes damage and inflammation to skin it comes into contact with
What is an irritant?
A reaction that removes energy from the surroundings
What is an endothermic reaction
The idea that there is still the same amount of mass before and after a reaction
What is "conservation of mass"?
The two products from a reaction of an acid and a metal
What is a salt + hydrogen?
The colour of water with indicator solution added
What is green?
A chemical that could cause death or serious harm if swallowed or inhaled
What is toxic?
What a catalyst reduces to speed up reactions
What is activation energy?
The change of state from gas to liquid
What is condensation?
A substance used by farmers to reduce the acidity of soil
What is limestone?
The colour of red cabbage solution with mouthwash added
What is pink?
A chemical that causes flammable substances to burn (react with oxygen) even more
What is oxidising?
The gas released from the reaction of calcium carbonate with an acid
What is carbon dioxide?
A substance made of two or more different elements chemically bonded
What is a compound?
Daily Double
Create a risk assessment for a practical that involves creating an indicator from red cabbage and testing it on various acids + alkalis