you can learn who's blood it is, you can also see the blood patterns and how the crime maybe happened.
Answer:
liquid and gas........................
Answer:
Turning the lights off when they're not needed.
Answer:
d. There are two moles of hydroxide for each mole of these compounds.
Explanation:
calcium hydroxide, strontium hydroxide, and barium hydroxide all have two hydroxide compunds. the difference between each of these compounds is they all contain a different element along with hydroxide.