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oksian1 [2.3K]
3 years ago
6

Add the two expressions. 69 + 1 and q + 11 Enter your answer in the box. Please help!!

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
3 0

Answer:

l think the answer is 81q

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Dimensional analysis: How many atoms are in a kilogram of silver, if there are 6.02 x 10^23 atoms per mole and silver weighs 107
kondor19780726 [428]

Answer:

5.58×10²⁴ atoms.

Step-by-step explanation:

From the question given above, the following data were obtained:

1 mole of silver = 107.9 g

Number of atoms in 1 mole of silver = 6.02×10²³ atoms.

Number of atoms in a kilogram of silver =.?

Next, we shall convert 1 kg of silver to grams (g). This can be obtained as follow:

1 kg = 1000g

Therefore, 1 kg of silver is equivalent to 1000g.

Finally, we shall determine the number of atoms in 1 kg (i.e 1000 g) of silver as follow:

107.9 g of silver contains 6.02×10²³ atoms.

Therefore, 1000 g of silver will contain = (1000 × 6.02×10²³) / 107.9 = 5.58×10²⁴ atoms.

Thus, a kilogram of silver contains 5.58×10²⁴ atoms.

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3 years ago
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rewona [7]

x = -7

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While driving home from work Donald's windshield got cracked by a small rock, causing $500 worth of damage. Given the policy sum
Dafna11 [192]

I think you would most likely add all of them well I think

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Jackson started writing a story at 8:30 AM He stopped writing at 1:15 P.M. How long did he write?​
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Hello i need help dose any one know what to do
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