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Tom [10]
3 years ago
12

Which is an element? A) alcohol B) sodium C) sugar D) water

Chemistry
2 answers:
hichkok12 [17]3 years ago
7 0
The answer is B, sodium is an element.
True [87]3 years ago
3 0
Sodium.
Hope this helps you out.
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Because the molecular solutions have low melting and boiling points, and do not conduct electricity.
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What step is ussaly done right before the experimentation in the scientific method
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The Step that is Usually done right before the experimentation in the Scientific Method is Developing a Hypothesis and asking a Question.

Hope that helped!

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3 0
3 years ago
Read 2 more answers
A rigid tank contains 1.40 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to l
sergey [27]

Answer : The final number of moles of gas that withdrawn from the tank to lower the pressure of the gas must be, 0.301 mol.

Explanation :

As we know that:

PV=nRT

At constant volume and temperature of gas, the pressure will be directly proportional to the number of moles of gas.

The relation between  pressure and number of moles of gas will be:

\frac{P_1}{P_2}=\frac{n_1}{n_2}

where,

P_1 = initial pressure of gas = 24.5 atm

P_2 = final pressure of gas = 5.30 atm

n_1 = initial number of moles of gas = 1.40 moles

n_2 = final number of moles of gas = ?

Now put all the given values in the above expression, we get:

\frac{24.5atm}{5.30atm}=\frac{1.40mol}{n_2}

n_2=0.301mol

Therefore, the final number of moles of gas that withdrawn from the tank to lower the pressure of the gas must be, 0.301 mol.

8 0
2 years ago
Which types of asexual reproduction could be seen
natita [175]

Answer:

Bacteria

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What are the rows of the periodic table called?
Sergio039 [100]

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"The elements are arranged in seven horizontal rows,called periods or series,and 18 vertical columns,called Groups."

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