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Darina [25.2K]
3 years ago
10

How many moles of water are formed from 0.65 moles of oxygen?

Chemistry
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

two moles of water

hope this helps

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Calculate the percent ionization of nitrous acid in a solution that is 0.311 M in nitrous acid (HNO2) and 0.189 M in potassium n
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<span>HNO2 =====> H+ + NO2-
</span>I<span>nitial concentration</span> = 0.311
<span>C = -x,x,x </span>
<span>E = 0.311-x,x,x

</span>KNO2 ====>K+ + NO2- 
<span>Initial concentration = 0.189 </span>
<span>C= -0.189,0.189,0.189 </span>
E = 0,0.189,0.189
 
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Any force that causes an object to move in a circle is called a(n) a balanced force. b unbalanced force. c gravitational force.
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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

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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

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3 years ago
two samples of water, 10 grams and 50 grams are in sperate cups which of the following properties is different for the two boili
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  • The boiling point and density are intensive properties and do not depend on the amount of matter present.
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4 Weathering Assessment
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Answer:

This is an example of chemical change because the Kool aid dissolved and turned the water red

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