Answer: All of these statements are true
Explanation:
Melting point help us to determine if a mixture is pure or has impurities by the virtues of it melting range..
Answer:
0.0400M of KI
Explanation:
Molarity is an unit of concentration defined as the ratio between moles of solute and liters of solution.
When you add 10.0 mL of 0.10M KI and 15.0mL, total volume is:
25.0mL = <em>0.025L of solution</em>
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And moles of KI are:
0.0100L × 0.10M = <em>0.00100 moles of KI</em>
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Thus, molarity is:
0.00100 moles / 0.025L = <em>0.0400M of KI</em>
Answer:
This is an oxidation/reduction reaction.
Explanation:
C is oxidized (loses electrons) and iron is reduced (gains electrons). C goes from oxidation number zero on the left to oxidation number 4+ on the right. Iron goes from oxidation number 3+ on the left to zero on the right.
