Which of the following could not act as a medium for a mechanical wave? A. Liquid water
B. A solid rope
C. Empty space
D. air

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

In which situation can a mixture always be called a solution

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.