What is the percent of Li in
Li3N?
(Li = 6.94 amu, N = 14.01 amu)

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.