Which of the following reactions is balanced? A)

Sn2+ + 2Fe3+ → Sn4+ + Fe2+

B)

2Sn2+ + Fe3+ → 2Sn4+ + Fe2+

C)

Sn2+ + 2Fe3+ → Sn4+ + 2Fe2+

D)

Sn2+ + Fe3+ → Sn4+ + Fe2+

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

How many moles of oxygen react with 12 moles of aluminum

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %