The andromeda galaxy is located approximate 2.5 million light-years from earth. Why is the light that Reaches earth 2.5 million years old

What is the SI unit for amount of a substance?

Calcium carbonate can break down to form calcium oxide and carbon dioxide. CaCO3 + CaO + CO2 The oxygen atoms on the product side are not balanced because there are only two oxygen atoms in CO2 o not balanced because there is only one oxygen atom in

What is the base unit of all matter?

5) Which balanced equation represents a spontaneous radioactive decay? A) B) C) D)

How many more valence electrons does sodium need to have a full outer valence shell?

What happens to the carbon atoms lost during respiration?

Uses of iron oxide in nanotechnology (biomedicine)

Organic chemistry is the study of compounds containing A. carbon. B. nitrogen. C. hydrogen. D. oxygen.

Explain why fermentation would occur in your muscle cells as opposed to cellular respiration.

How do intra-specific and inter-specific relationships within a community maintain biodiversity by preventing competitive exclusion?