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aksik [14]
3 years ago
15

I need help please ASAP

Chemistry
2 answers:
tankabanditka [31]3 years ago
6 0
B is the answer it should be
natka813 [3]3 years ago
4 0

Answer:

B

Explanation:

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Each mineral has its own properties different from other minerals because minerals are made up of different elements. Different elements which can be found on the periodic table all have unique properties, therefore, gold will have distinct properties in comparison with zinc or aluminium for example because they are made up of different elements :))))
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How many particles are in 13.5 grams of Beryllium ?
Marina86 [1]

Explanation:

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What is the mass of 14.4 moles Fluorine?<br> 0.379g<br> 274.8<br> 1.32 g<br> 2.64g<br> 547 g
liberstina [14]

Answer:

D

Explanation: d

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3 years ago
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Carbon dioxide and water react to form methanol and oxygen, like this:
fredd [130]

Answer:

24x10³

Explanation:

2CO₂(g) + 4H₂O(g) → 2CH₃OH(l) + 3O₂ (g)

The equilibrium constant for this reaction is:

Kc = \frac{[O_2]^3}{[CO_2]^2[H_2O]^4}

The expression of [CH₃OH] is left out as it is a pure liquid.

Now we <u>convert the given masses of the relevant species into moles</u>, using their <em>respective molar masses</em>:

  • CO₂ ⇒ 3.28 g ÷ 44 g/mol = 0.0745 mol CO₂
  • H₂O ⇒ 3.86 g ÷ 18 g/mol = 0.214 mol H₂O
  • O₂ ⇒ 2.80 g ÷ 32 g/mol = 0.0875 mol O₂

Then we calculate the concentrations:

  • [CO₂] = 0.0745 mol / 7.5 L = 0.0099 M
  • [H₂O] = 0.214 mol / 7.5 L = 0.0285 M
  • [O₂] = 0.0875 mol / 7.5 L = 0.0117 M

Finally we <u>calculate Kc</u>:

  • Kc = \frac{0.0117^3}{0.0099^2*0.0285^4} = 24x10³

3 0
3 years ago
So, I set up the P1/T1=P2/T2 formula. Why did I get the right answer with temperature in K, and not C°?
mario62 [17]

Answer:

Because Gay-LUssac's law works only on K scale. To find the answer you must convert C to K

Explanation:

Pls vote my answer as brainliest

5 0
3 years ago
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