In the chemical equation Fes - 2HCl → FeCl2 - H2S. there are two FeCl2 molecules Please select the best answer from the choices provided
What is the answer?

How do scientists think that gravity affected the formation of our solar system?

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

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.