What is the second most abundant element in stars?

A.

iron

B.

helium

C.

oxygen

D.

hydrogen

During which stage of the cell cycle dies the cell condense chromosomes and break down the nuclear envelope

The sun has been up for several hours, and it has been shining on these trees. What can the trees do because they are in the sunlight? What does this mean for the number of energy storage molecules in the trees?

Give three examples of an acid

How to treat stream water for drinking

What kind of molecule is glucose

What is the term for a solid that forms when two liquids are mixed together? A. a reactant B. an energy source C. a precipitate D. a solute

To convert from °C to K: T (K) = T (°C) + 273.15

If 5.05 g of Ca (OH) 2 and 6.70 g of H3PO4 are available, how many moles of Ca3 (Po4) 2 will you produce from each?

Why are metals conductive?

What chemical is in plastic bottle and how it affect humans?