An oxidizing agent (also called an oxidizer or oxidant) is referred to as a chemical compound that readily transfers oxygen atoms or a substance that gains electrons in a redox chemical reaction.

Explanation:

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5 0

3 years ago

How many grams of a solution that is 5.2% sucrose by mass are needed to obtain 18g of sucrose

kirill115 [55]

Answer:

346.g of solution

Explanation:

In this case, if we have 5.2 % by mass it means that in <u>100 g of the solution we will have 5.2 g of glucose</u>. Therefore we can do the calculation:

<u>5.2 g of glucose = 100 g of solution</u>

$18~g~of~glucose\frac{100~g~of~solution}{5.2~g~of~glucose}=346.15~g~of~solution$

So, if we need 8 g of glucose we had to have 346.15 g of solution

This logic can work for all types of solutions. By mass (as in this case), by volume or mass/volume.

I hope it helps!

3 0

4 years ago

A spring with constant 50 N/m is stretch 0.5 m. How much EPE does it have? A. 25 J B. 12.5 J C. 50 J D. 6.25 J

Step2247 [10]

Answer:

D. 6.25 J

Explanation:

EPE = 1/2*k*(Δx)²

∴ k = 50 N/m

∴ Δx = 0.5 m

⇒ EPE = 1/2*50 N/m*(0.5m)²

⇒ EPE = 6.25 N.m = 6.25 J

4 0

3 years ago