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timurjin [86]
3 years ago
13

When the temperature in a room increases from 25c to 33c what changes from a solid to a liquid

Chemistry
2 answers:
Contact [7]3 years ago
8 0
58 would be your answer
Anastasy [175]3 years ago
3 0

Answer:

Gallium

Explanation:

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How many moles of methane (CH4) is<br> 6.70 x 1022 atoms of methane?
suter [353]

Answer:

0.1113  mol

Explanation:

Data Given:

no. of atoms of CH₄= 6.70 x 10²² atoms

no. of moles of methane (CH₄) = ?

Solution:

we will find no. of moles of methane (CH₄)

Formula used

          no. of moles = no. of atoms / Avogadro's number

Where

Avogadro's number = 6.022 x 10²³

Put values in above equation

         no. of moles = 6.70 x 10²² atoms / 6.022 x 10²³ (atoms/mol)

         no. of moles = 0.1113  mol

So,

There are 0.1113 moles of methane.

8 0
3 years ago
The solubility of gases in liquids increases with increasing pressure. <br> a. True <br> b. False
amid [387]
Hello There!

The solubility of gases in liquids increases with increasing pressure.

Answer: True

Hope This Helps You!
Good Luck :) 

- Hannah ❤
6 0
3 years ago
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Which of the following is Not true of atoms?
Amanda [17]

Answer:

b

Explanation:

atom combine to form molecules to attain stable configuration

7 0
3 years ago
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A certain solution is 70% ethanol and the rest being distilled water. If there are 12 moles of ethanol per litre of solution, fi
Aleks04 [339]

Answer:

0.55284g/mL

Explanation:

Hello there!

In this case, given the by-mass percent of ethanol:

\frac{70gEt}{100gSol}

It is possible to compute the density by using its molar mass to find the grams in one liter of solution:

12\frac{molEt}{1L}*\frac{46.07 gEt}{1molEt}=552.85g/L

However, by taking the g/mL we obtain:

552.84\frac{g}{L} *\frac{1L}{1000mL}=0.55284g/mL

Which is the density of the solution.

Best regards!

6 0
3 years ago
Can someone please help me with this chemistry hw plzzzzz I really need help
Viktor [21]
Hey I can't see the questions properly
7 0
3 years ago
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