Which of the following states of matter has a definite shape? A. solids and liquids only B. liquids and gases only C. liquids only D. solids only

d

Explanation:

Liquids take the shape of the surrounding material and gases go everywhere

Solids can not be changed in physical form unless it gets pernamently changed

hi,

the capital city of australia is canberra.

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.