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Mandarinka [93]
3 years ago
10

How does carbon dioxide behave differently (its properties) as a gas compared with as a solid?

Chemistry
1 answer:
MaRussiya [10]3 years ago
5 0
<span> is made up of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent by volume.</span>
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Which of the following is the best example of potential energy?
strojnjashka [21]
Answer :

A car stopped at the top of a hill

Explanation :

Definition of potential energy : energy stored that depends upon the relative position of various parts of a system
5 0
2 years ago
What makes the outer shell electrons important is that they
klemol [59]
A, because the number of valence shell electrons (outer shell electrons) tells us how much the element or compound wants to bond or give up electrons. Most compounds and elements want to have eight valence ectrons in it's outer ring. So if an atom is far away from having eight, it will want to react more often.
3 0
3 years ago
The vapor pressure of benzene is 73.03 mm Hg at 25°C. How many grams of estrogen (estradiol), C18H24O2, a nonvolatile, nonelectr
alexira [117]

Answer:

14.9802 grams of estrogen must be added to 216.7 grams of benzene.

Explanation:

The relative lowering of vapor pressure of solution containing non volatile solute is equal to mole fraction of solute.

\frac{p_o-p_s}{p_o}=\frac{n_2}{n_1+n_2}

Where:

p_o = Vapor pressure of pure solvent

p_s = Vapor pressure of the solution

n_1 = Number of moles of solvent

n_2 = Number of moles of solute

p_o = 73.03 mmHg

p_s= 71.61 mmHg

n_1=\frac{216.7 g}{78.12 g/mol}=2.7739 mol

\frac{73.03 mmHg-71.61 mmHg}{73.03 mmHg}=\frac{n_2}{2.7739 mol+n_2}

n_2=0.05499 mol

Mass of 0.05499 moles of estrogen :

= 0.05499 mol × 272.4 g/mol = 14.9802 g

14.9802 grams of estrogen must be added to 216.7 grams of benzene.

6 0
3 years ago
How many atoms are there in 23g of Na? How would I attempt this question. Thanks
Pavlova-9 [17]
Avodagros number i.e. 6.023 ×10^23
4 0
3 years ago
Read 2 more answers
Which word equation shows hydrogen reacting with oxygen to form water?
Karo-lina-s [1.5K]
2H₂ + O₂ = 2H₂O
_______________________
3 0
3 years ago
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