Which property of an ice cube will stay the same after the ice cube is melted? A. Shape
B. Physical state
C. Mass
D. Texture

Which of these reactions are redox reactions? check all that apply.cd + hcl → cdcl2  + h2cucl2  + na2s → 2nacl + cuscaco3  → cao + co2          2zns + 3o2  → 2zno + 2so2          ch4  + 2o2  → co2  + 2h2o

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.