Answer:
The correct answer is chemical potential energy.
Explanation:
When the radiation energy of the Sun falls on the surface of the oceans, it makes the water to modify its state by undergoing evaporation. The form of energy exhibited by the water vapor is chemical potential energy.
When the energy from the Sun falls on the surface of the water, a change in the state takes place, that is, from liquid to gas. This gas elevates above in the form of water vapor, and this is a chemical change. This vapor possesses the tendency to get transformed into other forms. Thus, the energy present within the water vapor is known as chemical potential energy.
b. apple pie
c. orange juice
d. vegetable soup User: A group of students want to identify a sample of matter. They observed the sample and made the observations below. • There are various components in the sample. • Different regions of the sample have different properties. Based on these observations, how will the students classify the matter?
a. heterogeneous mixture
b. homogeneous mixture
c. chemical ...
Answer: (1) H+ ions in aqueous solution
a) 8
40*20%
=40*20/100
=800/100
=8
The atomic weight of the unknown element, which is approximately 20% less than calcium (40 amu), is estimated to be 32 amu.
The atomic weight of an unknown element is said to be approximately 20% less than that of calcium, which has an atomic weight of 40 atomic mass units (amu). To calculate the approximate atomic weight of the unknown element, take 20% of 40 (which is 8) and subtract it from 40. The result is 32 amu (40 - 8 = 32), so the correct answer is (c) 32.
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A.) 125 mL
B.) 250 mL
C.) 500 mL
D.) 2,000 mL
Answer: Option (B) is the correct answer.
Explanation:
The given data is as follows.
= 2.0 M, = 1.0 ml
= 0.008 M, = ?
Therefore, calculate the volume of given solution as follows.
=
Now, putting the given values into the above formula as follows.
=
=
= 250 ml
Therefore, volume of the solution obtained is 250 ml.
100 cm3
236 cm3
272 cm3
600 cm3
According to Charle's law, the new volume of the balloon will be 600 cm³ if pressure is kept constant.
Charles law is an experimental gas law which provides description about the behavior of gases which tend to expand on heating.It states that, at constant pressure, the temperature is in direct proportion with the volume that is,V∝T or V₁/T₁=V₂/T₂.The relation between volume and temperature is linear as the temperature increases volume also increases.
The graph of volume versus temperature is a straight line passing through the origin.The law was proposed by Jacques Charles in relation to ideal gases.
Substitution of the given values in the given formula, V₂= 200×180/60= 600 cm³.
Thus, the new volume of the balloon will be 600 cm³ if pressure is kept constant.
Learn more about Charle's law,here:
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Let x represent the new volume:
cross multiply:
then simplify to get 600cm^3
Hope this helps :)