Which of the following is a single replacement reaction?
2al + 6h2o yields 2al(oh)3 + 3h2
agno3 + nacl yields agcl + nano3
fe2o3 + 3h2o yields 2fe(oh)3
ch4 + 2o2 yields co2 + 2h2o

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.

The gram molecular mass or co2 is the same as the gram molecular mass of

Determine the osmotic pressure at 25 °c of an aqueous solution that is 0.028 m nano3. a) 0.685 atm b) 0.0729 atm c) 1.37 atm d) 0.0364 atm e) 2.06 atm