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Natalka [10]
2 years ago
9

Can you help me please ​

Chemistry
1 answer:
Mice21 [21]2 years ago
8 0
I’m not sure what the answer is but I hope someone can help!! Maybe answer choice B?
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How many moles of gas Does it take to occupy 520 mL at a pressure of 400 torr and a temperature of 340 k
Lubov Fominskaja [6]
Answer would be B. I provided work on an image attached. Message me if u have any other questions on how to do it

3 0
3 years ago
Would a precipitate form if a solution contained 8.0 x 10-4 m silver nitrate and 1.8 x 10-4 m potassium chromate? you will have
Alina [70]
Chemical reaction: 2Ag⁺(aq) + CrO₄²⁻(aq) → Ag₂CrO₄<span>(s).
</span>Ksp(Ag₂CrO₄) = 1,1·10⁻<span>¹².
</span>[Ag⁺] = c(AgNO₃) = 8.0·10⁻⁴ M.
[CrO₄²⁻] = c(K₂CrO₄) = 1.8·10⁻⁴ M.
Q(Ag₂CrO₄) = [Ag⁺]²·[CrO₄²⁻]. 
Q = (8.0·10⁻⁴ M)² · 1.8·10⁻⁴ M.
Q = 1.152·10⁻¹⁰.
Q<span> > Ksp, </span><span>a precipitate of silver chromate will form.
</span>Ksp is the solubility product constant for a solid substance dissolving in an aqueous solution.

<span> [Ag</span>⁺<span>] is equilibrium concentration of silver cations.
[CrO</span>₄²⁻] is equilibrium concentration of chromate anions.


6 0
3 years ago
What is the mass of an object that is accelerated 4 m/s2 by a force of 180 N?<br> kg<br> Asap!!!!!!!
muminat

Answer:

<h2>The answer is 45 kg</h2>

Explanation:

The mass of the object can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

m =  \frac{180}{4}  \\

We have the final answer as

<h3>45 kg</h3>

Hope this helps you

3 0
2 years ago
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BlackZzzverrR [31]
I would say c-gas because they float around and spread
7 0
3 years ago
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When light hits the Earth at a greater angle, what does this cause?​
crimeas [40]
Angle of Solar Radiation and Temperature
5 0
2 years ago
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