Answer:
A or C because they both kinda are the same
The answer is Ag.................silver
The answer is .00834 cg hopefully this helped
The last one 1) exothermic; 2) exothermic
Answer:
The chemist would require to use 43.43 grams.
Explanation:
In order to solve this problem we need to know<u> how much do 0.550 moles of selenium weigh</u>. To do that we use selenium's<em> molar mass </em>and multiply it by the given number of moles:
- 0.550 mol * 78.96 g/mol = 43.43 g
The chemist would require to use 43.43 grams.
