1.) There are variety of ways to produce carbon dioxide
a) Release or Evolution of Gas
b)Production of heat
c)production of electricity


2.)When you burn a sheet of paper, the new product (ash) is entirely different from the original one (paper).

a) Release or Evolution of Gas
b)Production of heat
c)production of electricity

3.)The product of chemical change in battery is____

a) Release or Evolution of Gas
b)Production of heat
c)production of electricity

4.)When fireworks launched into the sky, it is a precisely formed assembly of chemicals and fuel, calibrated to produce a single effect.

a) Production of sound and color.
b) Formation of precipitates.
c)Release or Evolution of Gas

5.)______ are the information of a by product known as curdle

a) Production of sound and color.
b) Formation of precipitates.
c)Release or Evolution of Gas