WILL GIVE BRAINLIEST Two helium isotopes fuse to form beryllium, as shown below. The mass of beryllium is 2.73 x 10^-7 kg less than the combined mass of the two helium atoms. How much energy was produced during this reaction? The speed of light is 3 x 10^8 m/s. Show your work. Use E = mc2.

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.