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Aloiza [94]
2 years ago
13

Help!!!!!!please it’s due tonight

Chemistry
1 answer:
mylen [45]2 years ago
7 0

Answer:

hello there, this was my answer

Explanation:

density = mass/volume

therefore, mass = density x volume

mass = 2.3 x 20

mass = 46g

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Answer:

B. NUCLEAR POWER CAN PRODUCE ELECTRICITY IN A Y KIND IF WEATHER.

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3. What measurement unit is used to measure molecules
lakkis [162]

Answer: It is Mole.

Explanation:

Mole is the SI unit of measurement used to measure the number of things, usually atoms or molecules. One mole of something is equal to 6.02214078×1023 of same things (Avogadro's number).

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3 years ago
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A reaction produces 92.50 g FeSO4. How many grams of CuSO4 are necessary for this to occur?
xxMikexx [17]

Fe+CuSO4⟶Cu+FeSO4

Given that  

FeSO4 = 92.50 g  

Number of moles = amount in  g / molar mass

=92.50 g / 151.908 g/mol

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Now calculate the moles of CuSO4 as follows:

0.609 moles FeSO4 * 1 mole CuSO4 /1 mole FeSO4

= 0.609 moles CuSO4

Amount in g = number of moles * molar mass

= 0.609 moles CuSO4 * 159.609 g/mol

= 97.19 g CuSO4


3 0
3 years ago
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¿Por qué los gases nobles tienen tendencia a no formar compuesto si como todo elemento de la tabla periódica estos tienen electr
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Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.
6 0
3 years ago
What is the molarity of a solution formed when you add 200. Ml of water to 50. Ml of 5. 0 m hcl
Gnesinka [82]

The molarity of a solution formed when you add 200 mL of water to 50 mL of 5. 0 M HCl is 1.25M.

<h3>How to calculate molarity?</h3>

The molarity of a solution can be calculated using the following formula:

M1V1 = M2V2

Where;

  • M1 = molarity of a base
  • M2 = molarity of acid
  • V1 = volume of base
  • V2 = volume of acid

M1 × 200 = 50 × 5

200M1 = 250

M1 = 250/200

M1 = 1.25M

Therefore, the molarity of a solution formed when you add 200 mL of water to 50 mL of 5. 0 M HCl is 1.25M.

Learn more about molarity at: brainly.com/question/12127540

6 0
2 years ago
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