Worksheetschemical reactions
Total questions: 23
Worksheet time: 13mins
Propane is burned in a well ventilated area
propane + oxygen --> carbon dioxide + water
propane + carbon dioxide --> oxygen + water
propane + oxygen --> carbon monoxide + water
Metals and acids react to form...
salt and hydrogen
salt and water
Carbin dioxide, salt and water
hydrogen only
Magnesium + hydrochloric acid ->
Magnesium chloride + water
Magnesium chloride + hydrogen
magnesium hydrochloride + hydrogen
Magnesium chloride + water + carbon dioxide
Zinc + sulfuric acid ->
Zinc sulfide + hydrogen
Zine sulfate + hydrogen
Zinc + water + carbon dioxide
Zinc sulfide + water
How do we test for hydrogen
Hydrogen extinguishes a lit splint
bubbling through lime water
Hydrogen makes a glowing splint relight
Squeaky pop test
neutralisation reaction is between an
Base and water
acid and water
acid and base
none of the above
An acid reacts with metal to produce
Carbon dioxide
salt and hydrogen gas
hydrogen gas
hydrogen gas and water
A neutralisation reaction produces
An acid
A neutral substance
water only
salt and water
What type of reaction is this? 2 C6H14 + 19 O2 --> 12 CO2 + 14 H2O
(hint: 2 C6H14 is a fuel)
Photosynthesis
Respiration
Acid + metal
If you touch a base it would be
(a)
What are the properties of acids?
Bitter, slippery, ph above 7
sour, reacts with metals, ph below 7
Sour, reacts with metals, ph above 7
Bitter, ph of 7, does not react with metals
What can you conclude if a metal doesn't fizz when added to water or an acid?
It has low reactivity
It may react with a stronger acid
It has high reactivity
There is no metal present
Magnesium + sulfuric aacid -> magnesium ____ + hydrogen
The missing word is
Chloride
Sulfur
Salt
Sulfate
Which has a bitter taste?
Base
Acid
Flagella
Cila
What is the only substance with a neutral pH of 7?
Milk
Orange Juice
Pure Water
Blood
All Water
Is acid rain a corrosive substance?
No
Yes
