The reaction below was carried out in an acidic solution. [ +103 —>12
Which statement is true about this equation?
Although it is unbalanced, it can be balanced by using the half-reaction method.
O It has been balanced by using the half-reaction method.
O It has been balanced by directly using spectator ions.
O Although it is unbalanced, it can be balanced by directly using spectator ions.

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

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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.