7. Which of the following is an endothermic process? O A. Isolation of elemental iron from iron ore
B. An iron lock rusting
O C. Combustion of coal
OD. The corrosion layer that formed on the Statue of Liberty

Which of the following are acids or bases? 1. sodium hydrogen 2. barium hydroxide solution 3. carbonate solution

What type of reaction is shown below? check all that apply. agno3(aq) + nacl(aq) → nano3(aq) + agcl(s) i synthesis decomposition combustion i single replacement double replacement done

The reaction below has a kp value of 3.3 x 10-5. what is the value of kc for this reaction at 700 k? 2 so3(g) ↔ 2 so2(g) + o2(g) the reaction below has a kp value of 3.3 x 10-5. what is the value of kc for this reaction at 700 k? 2 so3(g) ↔ 2 so2(g) + o2(g) 1.9 × 10-3 5.7 × 10-7 3.0 × 104 3.3 × 10-5 1.7 × 106