MASUSHIIN MASUSHIIN

Math

Answered

19. What is the % M/M if 10.0g of copper is added to enough zinc to produce 110g of an alloy?
A. 9.05%6
B. 9.09%
C. 9.10%
D. 10.00%
20. You bought an 18 karats ring which contains 18g of gold. What is the % by mass of gold in a ring?
A. 65%
B. 75%
C. 85%
D. 95%

pa help po pls

Sagot :

KKSNEUDGWIAIN KKSNEUDGWIAIN

Answer:

number 2: B.75

Step-by-step explanation:

18 carat gold means that of the 24g of alloy, 18g is "pure gold" which is 75.01%.

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