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Alex777 [14]
3 years ago
9

HELP QUICK!!!!!!!!!!

Chemistry
1 answer:
Semenov [28]3 years ago
8 0

Answer: 4 hours and 30 minutes

Explanation: because first wave was 1:30:00 and the second is 1:34:30

1:30:00 goes into 1:34:30 4 hours and 30 minutes.

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Lerok [7]

Answer:

B) Native fish species will begin to decrease in population size.

Hope it helps:D

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3 years ago
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Why is Neon in the same group of the periodic table as Helium?
andriy [413]
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3 years ago
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.

8 0
2 years ago
In the reaction ___h2+n2 ->2 NH3, what coefficient should be placed in front of H2 to balance the reaction?
Nataly_w [17]
In order to balance this equation you need to count each element and how many of the individual elements are in the equation.
_H2+N2=2 NH3
You multiply the 2 (Which is the coefficient) by the 3 (which is the subscript) This would equal 6 which indicated there are 6 hydrogen atoms on the right side so the left side should also have 6 hydrogen atoms

The missing coefficient on the left side must multiple the 2 to become 6 hydrogen
Answer=3
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3 years ago
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Answer: 50 degrees Celsius is hotter than 50 degrees F. 50 degrees Celsius is half way between freezing and boiling

4 0
2 years ago
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