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Ludmilka [50]
3 years ago
9

Fill in the blanks with the correct word. During diffusion, molecules move from areas of concentration to areas of Diffusion doe

s not require to move molecules. concentration. Previous Activity
TRY A LITTLE -_-
Will give brainliest :)​

Chemistry
1 answer:
stellarik [79]3 years ago
5 0

Answer:

1) higher

2) lower

1) energy

Explanation:

hope this helps you.

I would really like a brainliest :D

thank you and have a nice day.

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Which of the following terms means that metals can be pulled into thin strands or wires? [like copper]
Dimas [21]

Answer:

D

Explanation:

plz mark brainliest answer if it helps

5 0
2 years ago
Read 2 more answers
What is the pH of a solution made by mixing 200 mL of 0.025M HCl and 150 mL of 0.050 M HCl?
seraphim [82]

Answer:

The answer to your question is pH = 1.45  

Explanation:

Data

pH = ?

Volume 1 = 200 ml

[HCl] 1 = 0.025 M

Volume 2 = 150 ml

[HCl] 2 = 0.050 M

Process

1.- Calculate the number of moles of each solution

Solution 1

                Molarity = moles / volume

-Solve for moles

                moles = 0.025 x 0.2

result

               moles = 0.005

Solution 2

               moles = 0.050 x 0.15

-result

                moles = 0.0075

2.- Sum up the number of moles

Total moles = 0.005 + 0.0075

                   = 0.0125

3.- Sum up the volume

total volume = 200 + 150

                     350 ml or 0.35 l

4.- Calculate the final concentration

Molarity = 0.0125 / 0.35

              = 0.0357

5.- Calculate the pH

pH = -log [H⁺]

-Substitution

pH = -log[0.0357]

-Result

pH = 1.45    

8 0
3 years ago
The molar solubility of silver bromide, AgBr in pure water is 0.0007350 mol/L. What is the
gayaneshka [121]

Answer:

0.000000540

Explanation:

Step 1: Make an ICE chart for the solution of AgBr

"S" represents the molar solubility of AgBr

        AgBr(s) ⇄ Ag⁺(aq) + Br⁻(aq)

I                           0             0

C                          +S          +S

E                           S             S

Step 2: Write the expression for the solubility product constant (Ksp)

Ksp = [Ag⁺] [Br⁻] = S × S

Ksp = S² = (0.0007350)² = 0.000000540

7 0
2 years ago
What is the percent of copper in CuS?
bonufazy [111]

Answer:

Element Symbol Mass Percent

Cuprum Cu 66.464%

Sulfur S 33.537%

Explanation:

I got this out of my module, sorry if it's wrong but i am pretty sure 97% this is correct!

7 0
3 years ago
What is likely to happen if we can't control our experiment properly? A. Our hypothesis will have to be changed. B. We will need
REY [17]
The answer to your question
is b 
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3 years ago
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