Answer:
9.63 Km is the equivalent to 9,630 m.
9.63 Km is the equivalent to 9,630 m. TRUE
Convert atoms to moles then moles to grams
Answer : The correct answer is 109.
Explanation :
Significant figure : It is defined as the each digits of a number have meaning or contribute to the value of the number.
The addition of given digits is,
43.2 + 50.0 + 16.0 = 109.2
As per the question, the given digits has 3 significant figures. But the answer after addition is 109.2 has 4 significant figures.
The addition rule of significant rule is the least precise number of significant figure in any number of the problem determines the number of significant figures in the answer.
Therefore, from the addition rule, the correct answer is 109.
Answer:
94.7 g
The limiting reactant is CuCl2
Explanation:
The limiting reagent is the reagent with the least amount of moles. Converting grams to moles, you should find that there is 4.11 mol Mg and 1.49 mol CuCl2. CuCl2 is the limiting reagent.
The limiting reagent is what you will use to determine how much product you have. By stoichiometry, you can see that for every mole of CuCl2, you have one mole of Cu. So, that means we have 1.49 mol Cu. Convert to grams. Your answer should be 94.7 g.
