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Gnom [1K]
3 years ago
11

Which of these molecules has a lewis structure with a central atom having no nonbonding electron pairs? check all that apply. ch

eck all that apply. co2 sif4 h2s pf3?
Chemistry
1 answer:
Soloha48 [4]3 years ago
5 0
What are the answer choices
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What has a density of q
Novay_Z [31]

Answer:

  • Water has the density of 1.0g/ml
  • Anything with a density of less than 1.0/ml will float above water.
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4 0
3 years ago
Convert 213.62 grams of xenon gas at STP to L.
jolli1 [7]

Answer: The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5

Explanation:

Scientific notation is defined as the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example : 5000 is written as 5.0\times 10^3

According to avogadro's law, 1 mole of every gas contains avogadro's number 6.023\times 10^{23} of particles, occupy 22.4 L at STP and weighs equal to its molecular mass.

131.29 g of Xe occupy = 22.4 L at STP.

Thus 213.62 g of Xe occupy = \frac{22.4}{131.29}\times 213.62=36.45L at STP.

Scientific notation = 3.645\times 10^1L

The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5

4 0
2 years ago
Easy question <br> Who is the youngest in ateez
gregori [183]

Answer: jongho

Explanation:

3 0
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How many grams of oxygen are required to burn 0.10mole of c3h8?
Anastaziya [24]
1mol—44g/mol
0.10mol—x
x=0.10*44
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On July 8th, I will be 8.51472x10^8 seconds old. How old will I be in years? (Assume 365 days in a year.) Group of answer choice
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26.98

almost 27 years

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