Scientists make hypothesis in order to make an educated guess on the outcome of the experiment.
False. Solids have a definite shape and volume. Cutting a paper (solid) in half will alter the shape of the original solid and give it a new shape and volume instead. A solid will always have a definite shape. If not, it's not a solid.
10. For example, decagon and decade.
C+O2=CO2. The 2 would be smaller than the chemical symbol. Hope this helped