WorksheetsIG CHEM chapter 1-5 review
Total questions: 16
Worksheet time: 17mins
Which change occurs during freezing?
solid to liquid
liquid to solid
liquid to gas
gas to liquid
A compound has the formula CH3CH2COH. What is its relative molecular mass, Mr?
58
57
74
73
Which two elements could form a covalent compound?
sodium and fluorine
calcium and bromine
carbon and hydrogen
chlorine and helium
Which changes are physical changes?
melting ice
burning wood
painting wall
break a window
What is the number of protons in 31P- ?
16
31
15
What is the number of neutrons in 31P- ?
16
31
15
What is the number of electrons in 31P- ?
16
31
15
请拼写“元素”
(a)
请拼写“浓度”
(a)
An excess of zinc is added to 100 cm3 of 1.0 mol/dm3 hydrochloric acids. The equation for the reaction is:
Zn + 2HCl ---> ZnCl2 + H2
What is the maximum volume of hydrogen evolved at room temperature and pressure?
1.2 dm3
2.0 dm3
2.4 dm3
24 dm3
The equation for the reaction between calcium carbonate and hydrochloric acid is shown.
CaCO3 + 2HCl ---> CaCl2 + H2O + CO2
What is the mass of calcium carbonate will give 24 cm3 of carbon dioxide when reacted with an excess of the acid?
100 g
10 g
1 g
0.1 g
Iron(III) chromate is a yellow solid. It contains the ions Fe 3+ and CrO4 2-. What is the formula of iron(III) chromate?
FeCrO4
Fe3(CrO4)2
Fe2CrO4
Fe2(CrO4)3
Which substance/substances is/are giant molecular structure?
ammonia
diamond
graphite
carbon monoxide
In which of the following are the particles arranged in a regular pattern?
a gas
a liquid
a solid
a solution
Which state of matter has a fixed volume and a definite shape?
solid
liquid
gas
Calculate the concentration of a solution of sodium hydroxide, NaOH, that contains 10 g of NaOH in a final volume of 250 cm3.
10 mol/dm3
1 mol/dm3
1 mol/cm3
0,1 mol/cm3
