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ycow [4]
3 years ago
14

All of the noble gas elements except neon have 8 electrons in their outermost energy level. True or false

Chemistry
1 answer:
Solnce55 [7]3 years ago
4 0
False I think neon also has 8 electrons on it's outermost shell, I'm not rlly sure about that answer though.
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You have 100 milliliters of a 0.50 M MgBr2 solution and dilute it to a total volume of 200 milliliters. What is the molarity of
slamgirl [31]
The answer is 0.25 M

Use the equation C1V1=C2V2
(.5)(100)=x(200)
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3 0
3 years ago
A gas has a solubility of 2.45 g/L at a pressure of 0.750 atm. What pressure wold be required to produce an aqueous solution con
Lelechka [254]

Answer:

1.91 atm

Explanation:

Step 1: Calculate Henry's constant (k)

A gas has a solubility (C) of 2.45 g/L at a pressure (P) of 0.750 atm. These two variables are related to each other through Henry's law.

C = k × P

K = C/P

K = (2.45 g/L)/0.750 atm = 3.27 g/L.atm

Step 2: Calculate the pressure required to produce an aqueous solution containing 6.25 g/L of this gas at constant temperature.

We have C = 6.25 g/L and k = 3.27 g/L.atm. The required pressure is:

C = k × P

P = C/k

P = (6.25 g/L)/(3.27 g/L.atm) = 1.91 atm

3 0
3 years ago
What is a chemical change?
PIT_PIT [208]
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4 0
3 years ago
2al(c2h3o2)3 + 3baso4 → al2(so4)3 + 3ba(c2h3o2)2 which type of chemical reaction does this equation represent? f synthesis g neu
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4 0
3 years ago
Someone Help Me Plz. I'm not sure what the answer to this question is
ratelena [41]

Answer:

I’m pretty sure the answer is c

Explanation:

Sorry if I’m wrong

3 0
2 years ago
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