Chemistry: Acids & Alkali Flashcards
1
Q
Describe what happens during filtration.
A
An insoluble solid is separated from a liquid.
2
Q
Explain what is meant by conservation of mass.
A
In a chemical reaction the total mass of the reactants is equal to the total mass of the products.
3
Q
What is a compound?
A
A compound is made from two or more elements chemically bonded together.
4
Q
What is a mixture?
A
A mixture can be two or more elements or different compounds but they are not chemically bonded.
5
Q
What is a pure substance?
A
A substance that contains only one type of element or compound.
6
Q
State the colour that Universal Indicator would turn in an alkali.
A
Blue/Purple.
