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mariarad [96]
3 years ago
5

Supplementary vertical complementary similar

Chemistry
1 answer:
Leya [2.2K]3 years ago
8 0
Vertical angles should be your answer

hope this helps
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What is the mass of 15100 mL of oxygen gas at STP?
adell [148]

Answer:

02 has a mass of 1.78 g.

Explanation:

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5 0
2 years ago
Answer with explanation and you’ll get brain list
Gwar [14]

Answer:

Option D.

Explanation:

  • 6H₂ + P₄ → 4PH₃

First we convert the given reactant masses into moles, using their respective molar masses:

  • 4.00 g H₂ ÷ 2 g/mol = 2 mol H₂
  • 6.20 g P₄ ÷ 124 g/mol = 0.05 mol P₄

0.05 moles of P₄ would react completely with (6*0.05) 0.3 moles of H₂. There are more H₂ moles than required, meaning H₂ is in excess and P₄ is the limiting reactant.

Now we<u> calculate how many PH₃ moles could be formed</u>, using the <em>number of moles of the limiting reactant</em>:

  • 0.05 mol P₄ * \frac{4molPH_3}{1molP_4} = 0.2 mol PH₃

Finally we <u>convert 0.2 mol PH₃ into grams</u>, using its <em>molar mass</em>:

  • 0.2 mol PH₃ * 34 g/mol = 6.8 g

So the correct answer is option D.

5 0
3 years ago
Determine the point group change, if any, when GeCl4 is transformed into GeCl3F by a substitution process.
rjkz [21]

Answer:

The removal of one chlorine atom and addition of one fluorine atom.

Explanation:

When GeCl4 is transformed into GeCl3F by a substitution process, the main change that is occur in GeCl4 is the removal of one chlorine atom and addition of one fluorine atom. This process is known as substitution process in which two molecules exchange their atoms with each other when they comes in physically contact with each other.

8 0
3 years ago
What is the quantity of heat evolved when 15g of CH4 is completely burned in air? Given that CH4+2O2→ CO2+2H2OΔH=-890Kj/mol
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Answer:

You're going to have to convert the grams to moles, and then multiply that with the ratio of heat produced to the ratio of CH4

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3 years ago
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