Answer:
Five
Explanation:
Valance electrons are the outermost electrons in an atom. There are five electrons in the third layer of the phosphorus atom. So your answer is five valance electrons.
Silver reduction potential: 0.8 V
Nickel reduction potential: -0.23 V
Cell voltage = 0.8 - (-0.23)
= 1.03 V
Answer:
A. The chemical changes occurred because the chemicals changed.
Explanation:
When baking a cake several chemical reactions occur that change the chemical composition of the ingredients used in baking. An ingredient like baking powder releases carbon dioxide when it undergoes a temperature change in the oven. A chemical change is supposed to change the form of a substance.
An endothermic reaction also occurs when the ingredients absorb heat energy to produce several changes. The firmness of the cake occurs because of the heat absorbed by the proteinous content of the egg.
To put it simply we ca do the next procedure
<span>12 E21/6E23 * 201 = 2 E-2 * 201 = 4.02 g
</span>Remember please that <span>Hg has two hundred.fifty 9 grams now weight of 6.022*10^23 atoms weigh two hundred.fifty 9 grams now remedy for a million.Then we do the procedure i showed you at the beginning an in that way you will have the result of 4.02g</span>
