Mechanical waves can not travel through regions of space that are void of particles
Answer:A
Explanation: I’m pretty sure
If there is any unused Chemicals left in the container it should be properly disposed and chemicals taken out of the original container should not be poured back into the container because it can be <span>contaminated</span>
The best answer to report is 2.900 g/ml (answer A)
explanation
The best answer to report must be in four significant figures. 2.900 g/ml is therefore the best answer to report since in is in four significant. zeros placed after other digits but behind a decimal point are significant figures.,theerfore 2.900 has four significant figures