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hjlf
3 years ago
6

4

Mathematics
1 answer:
kiruha [24]3 years ago
6 0

Answer:

39 tons

Step-by-step explanation:

35 + 4 = 39

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Determine the solubility for cuc2o4(s) in pure water. Ksp for is 2. 9 × 10^-8
Elena-2011 [213]

Based on the elements and charges in Copper (II) Oxalate, CuC₂O₄(s), the solubility in pure water is 1.7 x 10⁻⁴ M.

<h3>What is the solubility of Copper (II) Oxalate in pure water?</h3>

The solubility equilibrium (Ksp) is 2.9 x 10⁻⁸ so the solubility can be found as:

Ksp = [Cu²⁺] [C₂O₄²⁻]

Solving gives:

2.9 x 10⁻⁸ = S x S

S² = 2.9 x 10⁻⁸

S = 1.7 x 10⁻⁴ M

Find out more on solubility at brainly.com/question/23659342.

#SPJ1

3 0
3 years ago
Sandra and Bernice are starting a nutrition and exercise program that will last 12 weeks. Sandra is starting at 150 pounds and p
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Answer:

They will not have the same weight during the program

Step-by-step explanation:

Let x be the number of weeks.

<u>Sandra:</u>

Sandra is starting at 150 pounds and plans to lose 1 pound a week.

Weight after x weeks:

150-x

<u>Bernice:</u>

Bernice is starting at 135 pounds and plans to lose 1/2 a pound a week.

Weight after x weeks:

135-\dfrac{1}{2}x

Weights must be the same, so

150-x=135-\dfrac{1}{2}x\\ \\\dfrac{1}{2}x-x=135-150\\ \\-\dfrac{1}{2}x=-15\\ \\x=30

Since 30 weeks is more that 12 weeks (the duration of the program), they will not have the same weight during this program.

6 0
3 years ago
The diagram shown can be used to prove the Pythagorean theorem. Which statement is TRUE about the diagram?
Margaret [11]

Answer:

Step-by-step explanation:

the answer is c

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3 years ago
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Tomatoes...really ?...lol

m + t = 45
m = 4t

4t + t = 45
5t = 45
t = 45/5
t = 9

m = 4t
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m = 36 <== maxine travels 36 minutes

6 0
4 years ago
Read 2 more answers
I had to watch these videos with the problem but i didn’t actually watch it so help pls
vodomira [7]

Answer:

u have to watch the videos so it can help u with the problem

Step-by-step explanation:

It will be easier if u watch them

8 0
3 years ago
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