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LenaWriter [7]
2 years ago
8

C1 Progress quiz: Atomic structure 2 - test

Chemistry
1 answer:
myrzilka [38]2 years ago
5 0

Answer:

0.11 nm

Explanation:

1.1 x 10-10 m

The goal is to convert the atomic radius from meters (m) to nanometres (nm). We do this by multiplying the value by 10^9.

This is given as;

1.1 * 10^{-10}  * 10^{9}\\1.1 * 10^{-10 + 9}\\1.1 * 10^{-1}\\0.11

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The density of H2O2 is 1.407 g/mL, and the density of O2 is 1.428 g/L. How many liters of O2 can be made from 55 mL H2O2
balandron [24]

Explanation:

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Now, you need the temperature.  If you are at STP (273 K, and 1.00 atm) then 1 mole of an ideal gas at STP has a volume of 22.4 L.  Without temperature you are not really able to continue.  I will assume you are at STP.

Volume O2 = 1.188 moles O2(22.4 L/mole) = 0.0530 L of O2.

which is  53 mL.

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2 years ago
When you remove energy from a substance there will be a *
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b, decrease in movement of the molecules

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hope this helped

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