Which of the following equations follows the law of conversation of mass a. 3h2o > 3h2 + 3o2 b. c + 4h2 > ch4 c. c2h4 + 3o2 > 2co2 + 2h2o d. 2na + cl > nacl

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Stage in which a typical star has completely stopped fusion

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.