the photograph of a glass of water shows the most abundant substance on Earth surface which fact about the substance tells you that it is a compound

1) this is the structure in the cell nucleus that houses a cell's genetic information

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that