який об'єм водню утворюється при взаємодії водного розчину етанавої кислоти масою 250 г з масою часткою кислоти 25% з достатньою кількістю цинку​

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .