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Ghella [55]
2 years ago
12

Which statement about the Nobel gases is most reliable

Chemistry
1 answer:
Wittaler [7]2 years ago
5 0

Answer:The noble gases are in the rightmost column of the periodic table.

Explanation:

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How many seconds are there in 2500 years? (Assume 1 year = 365 days.)
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7.884×10^10 seconds.
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3 years ago
Determine if the data are qualitative or quantitative.
jonny [76]
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Zinc: Is qualitative
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Nitrogen: is quantitative
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Read 2 more answers
Calculate the volume of a balloon that can hold 113.4 g of nitrogen dioxide, NO2 gas at STP-
Karolina [17]

Answer:

55.18 L

Explanation:

First we convert 113.4 g of NO₂ into moles, using its molar mass:

  • 113.4 g ÷ 46 g/mol = 2.465 mol

Then we<u> use the PV=nRT formula</u>, where:

  • P = 1atm & T = 273K (This means STP)
  • n = 2.465 mol
  • R = 0.082 atm·L·mol⁻¹·K⁻¹
  • V = ?

Input the data:

  • 1 atm * V = 2.465 mol * 0.082atm·L·mol⁻¹·K⁻¹ * 273 K

And <u>solve for V</u>:

  • V = 55.18 L
6 0
2 years ago
Please help! Please try and give me a long answer. Thanks!
Morgarella [4.7K]
I found this for your question

5 0
3 years ago
How many atoms of Hydrogen in the products of the following equation?
love history [14]

Answer:

2 atoms of H in the products side

Explanation:

3NO₂ + H₂O → NO + 2HNO₃

In product side: 3 N (1 from NO and 6 from nitric acid), 7 O (6 from nitric acid + 1 from NO), 2 H

In reactant side: 3 N, 7 O (6 from the dioxide + 1 from water) and 2 H

7 0
2 years ago
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