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k0ka [10]
3 years ago
14

What is the volume of a balloon that contains 3.7 moles of helium at 75°C and 5.1 atm?

Chemistry
1 answer:
postnew [5]3 years ago
8 0

Answer: your question is easy 21 L

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If one pound is the same as 454 grams, then convert the mass of 78 grams to pounds.
LiRa [457]

Answer:

0.17 lb

Explanation:

78 g * (1 lb/454 g)=0.17 lb

If you want additional help with chemistry or another subject for FREE, check out growthinyouth.org.

4 0
3 years ago
Which action effectively increases the reactant concentration and increases
yanalaym [24]

Answer:

heating the reactant mix

Explanation:

Heat can result in to speed the reaction process.

hope it helps!

8 0
3 years ago
Read 2 more answers
CORO<br> Name three ways that scientists can ensure their results<br> are reliable
Leya [2.2K]

Answer:

Reliability. When a scientist repeats an experiment with a different group of people or a different batch of the same chemicals and gets very similar results then those results are said to be reliable. Reliability is measured by a percentage – if you get exactly the same results every time then they are 100% reliable.

Explanation:

Sorry, I only got one way.

5 0
3 years ago
A certain process has ΔH° &gt; 0, ΔS° &lt; 0, and ΔG° &gt; 0. The values of ΔH° and ΔS° do not depend on the temperature. Which
tino4ka555 [31]

Answer: It is non-spontaneous at all T.

Explanation:

According to Gibb's equation:

\Delta G=\Delta H-T\Delta S

\Delta G = Gibbs free energy = +ve

\Delta H = enthalpy change  = +ve

\Delta S = entropy change  = -ve

T = temperature in Kelvin

\Delta G= +ve, reaction is non spontaneous

\Delta G= -ve, reaction is spontaneous

\Delta G= 0, reaction is in equilibrium

Putting in the values:

\Delta G=(+ve)-T(-ve)

\Delta G=(+ve)(+ve)=+ve  

Reaction is non spontaneous at all temperatures.

4 0
4 years ago
Other than through sexual reproduction, how can variations in genetic material occur in a population?
melomori [17]

Answer:

Through their adaptations from their habitat; environment

Explanation:

Charles Darwin explains evolution and their genetic material evolves during the process. For example, fruit birds have narrow bills whilst seed-eating birds have big bills. The foods they eat forced their DNA to adapt with the system in order to survive.

5 0
3 years ago
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