The reaction shown below is used in the production of steel. it is an exothermic reaction. an engineer thinks that by finding the correct catalyst, he can reduce the amount of energy released by the reaction. will his plan have the desired effect? explain your answer.
fe3o4(s) + 4c(s) → 3fe(s) + 4co(g)

Which statement best describes how atoms combine to form sodium chloride (nacl)? a. a positively charged sodium ion and a positively charged chlorine ion form an covalent bond. b. a positively charged sodium ion and a negatively charged chlorine ion form an covalent bond. c. a positively charged sodium ion and a positively charged chlorine ion form an ionic bond. d. a positively charged sodium ion and a negatively charged chlorine ion form an ionic bond.

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

What happens to the temperature of a substance when the average kinetic energy of its particles increases?