I think that marijuana should be legalized for recreational use. It's not really bad for you and it doesn't cause problems like violence. If marijuana was the most abused substance rather than alcohol it would be an improvement.
Given that acids burns and the reactions of some metals with acids are violent, you have to protect agains spills and splashes that can seriously harm you: your eyes, your hands, your arms, your feet, even your clothe.
So you shall use:
- Safety glasses (googles)
- Chemical gloves
- Lab coat
- Closed shoes
Answer:
Yes, a chemical change occurs.
Explanation:

CaSO4 is insoluble in the water, so a chemical reaction or chemical change occurs.
Answer:
carbon deoxide
Explanation:
Because at the end of equation you can see CO2