Answer:
13.00 g
Explanation:
To solve this problem, you need to understand the law of conservation of mass. This law means that whatever amount you start out with is what you should have at the end. The amount may be in different forms, but that amount is still there.
If you produced 10.00 g of B and 3.00 g of A, you should have started out with 13.00 g of AB.
10.00 + 3.00 = 13.00
2.1 x 10²²atoms
Explanation:
Given parameters:
Mass of silver = 3.78g
Unknown:
Number of atoms of silver = ?
Solution:
To solve this problem, we first find the number of moles of the silver from the given mass.
Number of moles = 
Molar mass of Ag = 108g/mole
Number of moles =
= 0.035mole
Now;
A mole of any substance contains 6.02 x 10²³ atoms
0.035 moles of Ag will contain 0.035 x 6.02 x 10²³ = 2.1 x 10²²atoms
learn more:
Number of moles brainly.com/question/13064292
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