a chemist is designing an experiment to investigate the effect of temperature on the rate of a chemical change. suggest a suitable hypothesis for the experiment. Also, list the dependent, independent and controlled variables that can exist in such an investigation

the role of the microscope world in creating new materials .

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

answer: they produce more slow than unicellular organisms.