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2 years ago

Which of the following is true about nuclear power?

Chemistry

1 answer:

puteri [66]2 years ago

5 0

Answer:

I thinks is B

Explanation:

they just look harmful

I also researched and it says its harmful and causes sickness and death

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What is the mass of a dolphin swimming at 16 m/s with a momentum of 800 kg m/s?

REY [17]

Answer: 50 kg

Explanation: formula is

m= p/v

m=800 kg m/s : 16m/s

m= 50kg

idk tho hope this helps

8 0

3 years ago

Phosphoric acid is delivered to a drinks factory in

FrozenT [24]

Answer:

Because it might be reactive or may lose its property in liquid form..

8 0

3 years ago

A hydrate of CuSO4 has a mass of 12.98 g before heating. After heating, the mass of the anhydrous compound is found to be 9.70

MatroZZZ [7]

After the water is boiled off, the mass is 9.7 grams, so find the weight of the water.

12.98 - 9.7 = 3.28g H2O

Find how many moles of CuSO4 and H2O you have.

If there are about 18g per mole of H2O

3.28/18 = .1822 moles of H2O

If there are about 160g per mole of CuSO4

9.7/160 = .0606 moles of CuSO4

.1822/.0606 = 3

Ratio of H2O to CuSO4 = 1:3

Formula
<span>CuSO4.3H2O
</span>
Full Name
<span>Copper (II) Sulphate Trihydrate</span>

8 0

3 years ago

What is the percent yield of NH3 if the reaction of 26.3 g of H2 produces 79.0 g of NH3?

Anvisha [2.4K]

Answer:

$\boxed{\text{53.3 \%}}$

Explanation:

MM: 2.016 17.03

N₂ + 3H₂ ⟶ 2NH3

m/g: 26.3

1. Theoretical yield

(a) Moles of H₂

$\text{Moles of H${_2}$} = \text{26.3 g H${_2}$} \times \dfrac{\text{1 mol H${_2}$}}{\text{2.016 g H${_2}$}} = \text{13.05 mol H${_2}$}$

(b) Moles of NH₃

$\text{Moles of NH${_3}$} = \text{13.05 mol H${_2}$} \times \dfrac{\text{2 mol NH${_3}$}}{\text{3 mol H${_2}$}} = \text{8.697 mol NH${_3}$}$

(c) Theoretical yield of NH₃

$\text{Mass of NH${_3}$} = \text{8.967 mol NH${_3}$} \times \dfrac{\text{17.03 g NH${_3}$}}{\text{1 mol NH${_3}$}} = \text{148.1 g NH${_3}$}$

(d) Percent yield

$\text{Percent yield} = \dfrac{\text{ actual yield}}{\text{ theoretical yield}} \times 100 \% = \dfrac{\text{79.0 g}}{\text{148.1 g}} \times 100 \% = \textbf{53.3 \%}\\\\\text{The percent yield is }\boxed{\textbf{53.3 \%}}$

7 0

3 years ago

Read 2 more answers

a certain skin lotion is a fine mixture of water and various oils. this lotion is cloudy and cannot be separated into oil and wa

AURORKA [14]

The answer is solution because it cannot be separated or colliod homogenous mixture which has all the components in the same phase. emulsions or what ever idk your answer but that my best answer :3

8 0

3 years ago