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mylen [45]
3 years ago
11

Ummmm i don’t need help on the question i just need help on how i drag tools with my chrome book i’m stuck i tried everything

Chemistry
1 answer:
Illusion [34]3 years ago
8 0

Answer:

Try using the touch screen and make sure you have not right clicked on anything.

Explanation:

Hope this helps!

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How many molecules of CH4 are in 48.2 g of this compound? A) 2.00 x 1023 B) 5.00 x 10-24 C)1.81 x 1024 D) 4.00 E) 4.64 x 1026 10
Tasya [4]

<u>Answer:</u> The correct answer is Option C.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass of methane = 48.2 g

Molar mass of methane = 16 g/mol

Putting values in above equation, we get:

\text{Moles of }CH_4=\frac{48.2g}{16g/mol}=3.0125mol

According to mole concept:

1 mole of compound contains 6.022\times 10^{23} number of molecules.

So, 3.0125 moles of methane will contain = 3.0125\times 6.022\times 10^{23}18.141\times 10^{23}=1.81\times 10^{24} number of molecules.

Hence, the correct answer is Option C.

8 0
3 years ago
How many grams is 10 moles of H2O?​
Elan Coil [88]

Answer:

So, 10 mole of water will weigh (18x10) = 180g.

5 0
3 years ago
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GrogVix [38]

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Jamal was riding his bike home at a speed of 12 mph. On his trip out, he had traveled 8 miles away from his house. He has been t
NikAS [45]

Jamal is 2 miles away from his home.

Option B.

<h3><u>Explanation:</u></h3>

The initial distance of Jamal from his home is 8 miles. He needs to return home from his trip.

The speed that Jamal kept was constant for 30minutes and he drove at a speed for 12 miles per hour.

Speed of Jamal = 12 mph.

Time of travel = 30minutes =0.5 hours.

So distance traveled by Jamal = 12 \times0.5miles. = 6miles.

Initial distance of Jamal = 8 miles.

So final distance = 8-6 miles = 2miles.

So Jamal is 2 miles away from his home.

3 0
3 years ago
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When swimmers get out of the pool and sit in the sun, their wet skin dries quickly. What happens to the water?
I am Lyosha [343]

Answer:

It evaporates and moves into the air.

Explanation:

When water is left out for a while, it evaporates into the air! :)

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3 years ago
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