SOMEONE ANSWER FAST When a sample of blue crystals is heated, a vapour

is given off and a white powder remains. Analyze

whether a physical or a chemical change occurred.

Give reasons for your answer.

the answer is option a.

no statements shown

the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

answer: i dont know the answer but this might

explanation:

l

answer///carbon;