Tahirahcooke8125
17.09.2019 •
Chemistry
All atoms of the element potassium have 19 protons. one of the most stable types of potassium atoms has the mass number 39. how many neutrons make up one of these potassium atoms?
-19
-20
-38
-58
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Ответ:
Ответ:
Ответ:
Correct
The equilibrium expression is defined as the ratio of the concentration of products divided by the concentration of the reactants. Each reactant or product is raised to the power corresponding to its coefficient in the balanced chemical equation.
Explanation: