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noname [10]
3 years ago
8

What is an example of a physical change?

Chemistry
2 answers:
Svetradugi [14.3K]3 years ago
6 0

Answer:

B is correct answer

Explanation:

IrinaK [193]3 years ago
5 0
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The controlled Release of nuclear energy in a creator is accomplished by: allowing the critical mass of fuel to react . Controll
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If a chain reaction takes place, the amount of energy released would increase exponentially, so in order to control the energy release, fission must be controlled without controlling a chain reaction, so the third option is correct.

Hope this helps!

Explanation:

4 0
3 years ago
Please help brainiest is award.
sineoko [7]

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7688

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3 0
3 years ago
The number of O atoms in 6.15 g of Al(PO 4 ) 3 (molar mass=122.00 g/mol) is
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3 years ago
"A solution with a total volume of 850.0 mL contains 43.5 g Mg(NO3)2. If you remove 25.0 mL of this solution and then dilute thi
ycow [4]

Answer: C = 0.014M

Explanation:

From n= m/M= CV

m =43.5 M= 148, V=850ml

43.5/148= C× 0.85

C= 0.35M

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C1V1=C2V2

C1= 0.35, V1= 25ml, C2=?, V2= 600ml

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7 0
4 years ago
Calculate the mass of oxygen in 30 g of CH NH COOH?​
Naya [18.7K]

Molar mass of CH2NH2COOH - 75

Given mass of CH2NH2COOH - 30

Moles of CH2NH2COOH = Given mass/ Molar mass

moles of CH2NH2COOH = 30/75 = 0.4 mol

One mole of CH2NH2COOH contains 32 gram of oxygen

0.4 mole of CH2NH2COOH will contain = 0.4 × 32= 12.8 g of oxygen

Answer- the mass of oxygen in 30 g of CH2NH2COOH is 12.8 gram!

7 0
3 years ago
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