Simple Chemical Reactions

Simple Chemical Reactions
If baking soda or fruit salt is mixed with vinegar, there takes place a
chemical reaction
physical reaction
transference
both a and b
Author: rikazzz Comment
Simple Chemical Reactions
Burning of fossils fuel results in the production of
bio gas
oxygen
carbon dioxide
nitrogen
Author: rikazzz Comment
Simple Chemical Reactions
Dilute acids and alkalis react together to form
salt
water
gases
both a and b
Author: rikazzz Comment
Simple Chemical Reactions
If both water and carbon dioxide is given to plant it will not be able to prepare its own food in absence of
sugar
soil
sunlight
fertilizers
Author: rikazzz Comment
Simple Chemical Reactions
In physical changes the solutes and solvents can easily be separated by
evaporation
distillation
heating
both a and b
Author: rikazzz Comment
Simple Chemical Reactions
Melting, freezing, boiling, evaporation and condensation are all
physical change
chemical change
complex change
electrical change
Author: rikazzz Comment
Simple Chemical Reactions
Chalk, limestone, marble, eggshells and seashells are made of
calcium hydroxide
calcium oxide
calcium carbonate
calcium chloride
Author: rikazzz Comment
Simple Chemical Reactions
Changes occur in matter at
specific times
all the times
thermal reaction
continuously
Author: rikazzz Comment
Simple Chemical Reactions
Natural gas is more efficient and produces less
pollution
heat
reaction
less evaporation
Author: rikazzz Comment
Simple Chemical Reactions
If two or more substances are combined to form a new substance, the chemical reaction is termed as
thermal decomposition
combination
addition
combustion
Author: rikazzz Comment

Go to Page