Answer:
1.38 x atoms
Explanation:
To get grams to atoms/molecules/particles we need to first convert grams > moles > atoms. This also applies in the other direction, where you have moles as that stepping stone.
Some key information we need:
Magnesium's molar mass= 24g/mol
Avogadro's Number= 6.022 x atoms
Where there is 1 mol per 6.022 x atoms
*This maybe be something you want to memorize.
Grams to moles using molar mass , then to atoms using avogadro's number.
55g Mg x x = 1.38 x atoms
Answer: (c)
Explanation:
Nuclear fusion reactions involve 2 smaller nuclides combining to form one larger nuclide.
However, the mass is not correctly balanced for (a), but it is for (c).
Answer:
<h2>7.04</h2>
Explanation:
The pH of a solution can be found by using the formula
From the question we have
We have the final answer as
<h3>7.04 </h3>
Hope this helps you
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