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boyakko [2]
3 years ago
6

On a hot summer day in Florida, Sarah was having a picnic with her family. She took a glass, which had been sitting in the Sun,

and filled it with ice cubes from a cooler. Then she added cold lemonade from a thermos jug. Which of the following describes one direction in which heat will flow?
A.From the ice cube to the glass.
B. From the lemonade to the glass.
C. From the lemonade to the ice cube.
D. From the ice cube to the lemonade.
Chemistry
1 answer:
Gelneren [198K]3 years ago
5 0
I think the answer is b
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32.7 g of Zn

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

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From the balanced equation above,

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Next, we shall determine the number of mole of Zn required to produce 0.5 mole of H₂. This can be obtained as follow:

From the balanced equation above,

1 mole of Zn reacted to produce 1 mole of H₂.

Therefore, 0.5 mole of Zn will also react to produce to 0.5 mole of H₂.

Thus, 0.5 mole of Zn is required.

Finally, we shall determine the mass of 0.5 mole of Zn. This can be obtained as follow:

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Mass = mole × molar mass

Mass of Zn = 0.5 × 65.4

Mass of Zn = 32.7 g

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