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3 April, 19:57

Anna heated 15 g of Substance A to obtain 5 g of Substance B, 4 g of Substance C, and a certain amount of Substance D. Which statement is correct?

The mass of Substance D was 10 g less than the mass of Substance A.

The mass of Substance D was 1 g greater than the mass of Substance B.

The mass of Substance A was equal to the total mass of Substance C and Substance D.

The mass of Substance A was equal to the total mass of Substance B and Substance D.

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Answers (2)
  1. 3 April, 20:03
    0
    Explanation:The mass of Substance D was 10 g less than the mass of Substance A.

    Anna heated 15 g of Substance A to obtain 5 g of Substance B, 4 g of Substance C, and a certain amount of Substance D. Which statement is correct?

    The mass of Substance A was equal to the total mass of Substance C and Substance D.
  2. 3 April, 20:06
    0
    The mass of Substance D was 1 g greater than the mass of Substance B.

    Explanation:

    15 g of A → 5 g of B + 4 g of C + x g of D

    From the law of conservation of mass, Mass of D should be x = (15 - 5 - 4) g = 6 g

    This is 1 g more than the mass of B and 2 g more than mass of C.

    Thus, correct option is The mass of Substance D was 1 g greater than the mass of Substance B.
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Home » Physics » Anna heated 15 g of Substance A to obtain 5 g of Substance B, 4 g of Substance C, and a certain amount of Substance D. Which statement is correct? The mass of Substance D was 10 g less than the mass of Substance A.
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