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Nitella [24]
3 years ago
12

The students in the picture below are using a globe and a lamp to model the Sun and the Earth. If the model Earth acts the same

as the real Earth, what will happen as the students spin the model?
A. Different parts of the model Earth will have different seasons.
B. All of the model Earth will have daytime at the same time.
C. A new year will start each time the model Earth makes a complete turn.
D. Some parts of the model Earth will have daytime and some will have night.
Chemistry
1 answer:
timofeeve [1]3 years ago
7 0

Answer:

The only one that makes sense IF the model behaves as the Earth is D.

Explanation:

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7 0
1 year ago
which has a higher entropy for the reaction: 2nh3(g)→n2(g) 3h2(g) which has a higher entropy for the reaction: reactants product
krok68 [10]

The one that has a higher entropy for the reaction is products.

<h3>What is entropy?</h3>

Entropy is a measureable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty. It is the measurement of the amount of thermal energy per unit of temperature in a system that cannot be used for productive work. It is a measure of a system's molecular disorder or unpredictability since work is produced by organized molecular motion.

It should bm be noted that the entropy of gas is more than entropy of aqueous which is more than the entropy of liquid and the entropy of solid.

On the product side there are more gas than the reactant side. Therefore, product has more entropy.

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3 0
1 year ago
An alpha particle has the same composition as a A) hydrogen nucleus B) deuterium nucleus C) beryllium nucleus D) helium nucleus​
Elza [17]

Answer:

Helium Nucleus

Explanation:

4 0
2 years ago
Does mint actually cool things down
PtichkaEL [24]
The cooling of a mint is just a sensation if you were to put mints into warm water the water would remain warm because it is just a cooling sensation. I hope this helps:)
3 0
3 years ago
3
Zina [86]

Answer:

Explanation:

n CaCO3 = mass / m.wt

             = 500  /( 40 + 12 + 16x 3)

           =   5 mole

n CaO = 5 moles  ( from the balanced equation we have 1:1 moles )

mass of CaO = nCaO X m.wt

                       5 x(  40 +16 )

                 =   280 grams

5 0
3 years ago
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