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Nataly_w [17]
3 years ago
6

The range in size of most atomic radii is approximately

Chemistry
1 answer:
dsp733 years ago
5 0
2-5 cm. I hope it helps
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3 years ago
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What is the empirical formula of the compound that is 25.3% magnesium and 74.7% chlorine
Margarita [4]

Answer: MgCl_2

Explanation:

25.3% Mg

74.7% Cl

First step: change % to g

25.3g Mg

74.7g Cl

Second step: calculate g/mol of each compound. You can do this by using the atomic mass.

25.3gMg(\frac{1mol}{24.30g})=1.04mol

74.7gCl(\frac{1mol}{35.45g} )=2.11mol

Third step: determine the lowest number and divide everything by it. Of the result, extract whole number only.

Mg=\frac{1.04}{1.04} =1

Cl=\frac{2.11}{1.04}=2

Fourth step: Write each compound with their respective number below.

This empirical formula should be: MgCl_2

4 0
3 years ago
If the Kelvin temperature of a gas is doubled, the volume of the gas will increase by ____
liraira [26]

If the Kelvin temperature of a gas is doubled, the volume of the gas will increase by two. It follows Charles law where in for a mixed gas of mass, the volume is directly proportional to the temperature at constant pressure.

3 0
3 years ago
Which of the following chemical equations is correctly balanced?
olga55 [171]
The correct answer is B.
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Charles's Law of V/T = k were represented in graphical form, what it would look like?j
loris [4]
As far as I understand, you have to plot <span>t(v) = v/k.
According to this, you have to use a form like that </span>y(x)=mx+b, in which (x,y)=(V,T).
Then you can see that the vertical-intercept is zero therefore the gradient should be is <span><span>1/k.
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