Download - Year 10 Review
YEAR 10 REVIEW
Material World – Acids and Materials
1. All matter is made up of atoms. Label the parts of the atom.
1. Nucleus2. Proton 3. Neutron4. Electron5. Shell
Hint: the red particles are positive
A
B
C
D
E
ECADB
2. Fill in the missing symbols and names of the elements.
Hydrogen ChlorineHe K
Lithium SiliconBeryllium Sodium
B MgCarbon Fluorine
N OAluminium Sulfur
3. Work out what type and how many atoms are in a compound by looking at its formula.
4
H2O = 2 x H and 1 x O CO2 2FeS C6H12O6 3O2 MgCl2 Ca(OH)2
= 1 X C and 2 X O = 3
= 2 X Fe and S X O = 2
= 6 X C and 12 X O and H X 12= 24= 3 X 2 X O = 6
= 1 X Mg and 2 X Cl = 3
= 1 X Ca and 2 X O and 2 X H = 5
4. Complete the following word equations. Acid + __________ salt + water Acid + __________ salt + water + carbon
dioxide Acid + __________ salt + hydrogen gas
Hint: use metal, carbonate, and base
Metal
Carbonate
Base
6. Name 3 acids and 3 bases.AcidsLemon juiceBile in stomachVinegar
BasesClothes washing powderBaking sodaSoap
7. Where would you find acids, bases and water on the pH scale? Strong acids – pH = 0
Weak acids – pH = 6 Water – pH = 7 Weak bases – pH = 8
Strong bases – pH = 14
8. Match the test with the gas it tests for. 1. Hydrogen2. Oxygen3. Carbon dioxide
A. Limewater will change from clear to white; a lit splint will go out
B. A lit splint blown out will relightC. ‘pop’ test – a flame goes out
with a ‘pop’
CB
A
9. Give a use and a reason for that use for each metal listed.
Metal Use ReasonGoldCopperMercuryChromium
Aluminium
10. What is needed for complete combustion? Lots of oxygen
11. What are the products of complete combustion? Incomplete combustion?
Hint: What colour forms on the bottom of a beaker if it is held over a yellow flame?