Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
G7 CH8 - Chemical Reaction
0
%
0
0
0
Back
Restart
When a piece of apple is placed in hydrogen peroxide it bubbles. A gas is given off. This gas is __________
Oxygen
Oops!
Okay!
the reaction of magnesium with acid and seen bubbles of the gas. What gas is produced?
Hydrogen
Oops!
Okay!
How many cm3 is this reading?
47 cm3
Oops!
Okay!
How many cm3 is this reading?
12 cm3
Oops!
Okay!
A gas was tested with a lighted splint and it made a popping sound. Which gas was it?
Hydrogen
Oops!
Okay!
If the solution is green, what pH does it has?
pH 7
Oops!
Okay!
The products of a chemical reaction contain the elements magnesium, hydrogen and chlorine. What elements are present in the reactants?
Magnesium + Hydrogen + Chlorine
Oops!
Okay!
Complete these word equations
Magnesium and hydrogen
Oops!
Okay!
Sugar dissolving in a hot drink. Chemical reaction or Physical change?
Physical Change
Oops!
Okay!
How many cm3 is this reading?
16 cm3
Oops!
Okay!
Iron filings heated with sulfur to produce iron sulfate. Chemical reaction or Physical change?
Chemical Reaction
Oops!
Okay!
Complete these word equations
Hydrochloric and hydrogen
Oops!
Okay!
When baking powder and vinegar react, a gas is also given off. This gas is __________
Carbon dioxide
Oops!
Okay!
Is this fair test or not?
Not Fair test. (Because the acid is not same)
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies