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anyanavicka [17]
3 years ago
14

Convert 21 degree Celsius to fahrenheit

Chemistry
1 answer:
Amanda [17]3 years ago
8 0
That's easy the answer is 69.8

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compared to a solution with a pH of 6, the hydronium ion concentration of a solution with a pH of 4 has how many more Times the
tangare [24]

Answer: 100 times

Explanation: Since logaritms are about exponent of base ten.The concentration will be 10^2 or 100 times greater concentration.

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3 years ago
You are trying to dilute antifreeze to put in your car. You use 1.00 L of the antifreeze with a concentration of 9.24 M. You add
Firlakuza [10]
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What power source uses the earth’s internal heat?
neonofarm [45]
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3 0
3 years ago
Read 2 more answers
The mass of 1.49 of H2 gas at stp
FinnZ [79.3K]

Answer:

Explanation:

I'll assume 1.49 is liters.

All gases occupy 22.4 L for each mole of gas at STP.  This makles a very useful, and important, conversion factor:

(22.4L/mole gas) for all gases at STP.

Therefore 1.49L of H2 would be:

(1.49L H2)/(22.4L/mole gas) = 0.0665 moles

The molar mass of H2 is 2, so:

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3 0
3 years ago
Construct the molecular orbital diagram for h2- and then identify the bond order
Sav [38]
Since 1s<span> shell of bonding orbital can accommodate only two electrons. So, next one electron will go into 1</span>s<span> shell of anti-bonding orbital.

- Bond order = (Bonding electrons - antibonding electrons) / 2
                    = (2 - 1) / 2 = 0.5 

</span>

5 0
3 years ago
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