What's a member of the boron family and the most abundant metal in the earths crust

The oxidation number of As in Na3AsO2 is

How many carbon atoms C3H8 has 3.92 X 10^24 H atoms

What does newtons third law say about why momentum is conserved in collisions?

6 protons 7 neutrons 6 electrons

Which of the following is false about a spontaneous chemical reaction that generates electricity:a. Oxidation and reduction half-reactions occur at electrodes in electrochemical cells. b.

Explain why a piece of aluminum or magnesium can be used to remove tarnish, which is mostly silver sulfide, on silverware.

Why is it important for an engineer who is designing a new home-cooling/heating system to have knowledge about the transfer of heat?

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g) Also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the

What is the name of the outermost layer that forms a boundary around the outside of each cell

Intact cells of two unknown cell types were placed into solutions with different concentrations of NaCl. Type I cells swelled and burst in the solution with the lowest concentration of NaCl.