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Archy [21]
3 years ago
13

( i need help on this one )

Chemistry
1 answer:
lara [203]3 years ago
7 0

Answer:

1. False

2.True

Explanation:

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How many atoms are in 35.5 g of chlorine?
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35.5 g of chlorine is 1 mole of chlorine.

The answer is Avogadro's Number 6.02 x 10^23 atoms. 1 mole of every element has this number of atoms.

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Which of the following is NOT a characteristic of most metals?
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A) Brittle is not a characteristic of most metals
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How many moles of sulfur dioxide are in 2.26x10^33 sulfur dioxide molecules?
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Answer:moles = no. of molecules / Avogadro's number

          = 2.26 x 10^33 / 6.022 x 10^23

          = 3752906011

Round to significant figures which is 3 = 3.75 x 10^9 mol

Explanation:

The formula for finding how many moles of a substance when given the amount of molecules is: moles = number of molecules / Avogadro's number

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The change of state from a gas to a liquid is called
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The correct answer is 'condensation'. For instance, when you have a cold liquid in a glass, the water vapor in the air changes from a gas to a liquid, or condenses, to form droplets on the sides of your cup.

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