Card 11 / 23: Which of the following is an illustration of the law of definite proportions?
A)
water is a compound
B)
water can be separated into other substances by chemical processes
C)
the boiling point of water is constant
D)
water is 11% hydrogen and 89% oxygen by mass
E)
water occurs naturally on the earth in all three states
Answer:
D) water is 11% hydrogen and 89% oxygen by mass
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