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Lemur [1.5K]
4 years ago
8

I NEED AN ANSWER TO THE PHOTO! HELP ASAP! PLEASE!

Chemistry
1 answer:
Anna35 [415]4 years ago
6 0
Ok so A) is the only applicable answer.
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Which term is defined as the phase change from gas to solid?.
const2013 [10]

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deposition is the change from gas to solid

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2 years ago
What is the difference of how fast the particles move in the<br> different states of matter?
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May i ask you what lesson this is ?
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What is an example of a qualitative observation?
Lunna [17]

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20 cats.

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7 0
3 years ago
Determine the concentration of a solution prepared by diluting 20.0 mL of 2.00 M NaCl to 250.0 mL. Please show your work.
yawa3891 [41]

0.16 M is the concentration of a solution prepared by diluting 20.0 ml of 2.00 M NaCl to 250.0 ml.

Explanation:

Data given:

Initial volume of NaCl, V1 = 20 ml

initial molarity of the NaCl solution = 2M

Final volume of the NaCl solution = 250 ml

final molarity of the diluted solution = ?

from the information given, the formula for dilution used is:

Minitial Vinitial = Mfinal Vfinal

putting the values in the rearranged equation:

V final = \frac{Minitial Vinitial }{Vfinal}

V final = \frac{20 X 2}{250}

Mfinal = 0.16 M

Thus it can be seen that when a 20 ml solution having molarity of 2M is diluted to 250 ml the molarity decreases to 0.16 M.

6 0
3 years ago
What is the volume of 0.80 grams of O2 gas at STP?
frez [133]

Answer:

The volume of 0.80 grams of O2 is 0.56 L

Explanation:

Step 1 : Data given

Mass of O2 = 0.80 grams

Molar mass of O2 = 32 g/mol

STP = 1 mol, 1atm, 22.4 L

Step 2: Calculate moles of oxygen

Moles of O2 = Mass of O2 / molar mass of O2

Moles O2 = 0.80 grams / 32 g/mol

Moles O2 = 0.025 moles

Step 3: Calculate volume of O2

1 mol = 22.4 L of gas

0.025 moles = 0.025*22.4L = 0.56 L

The volume of 0.80 grams of O2 is 0.56 L

5 0
4 years ago
Read 2 more answers
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