5. What mass of aluminum would absorb 2450 J of energy if its temperature increased from 15.6°C to
41.2°? (The specific heat of aluminum is.90 J/g•°C)

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.