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Pavlova-9 [17]
2 years ago
14

Which describes a spontaneous reaction?

Chemistry
2 answers:
shusha [124]2 years ago
6 0
C. ) Negative Delta G is the answer that describes a spontaneous reaction
Masja [62]2 years ago
4 0
The answer is D
For Delta G the negative number is always spontaneous because it is less than 0
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Chemists use letters of the alphabet as ____ for the elements.
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Answer:

The symbol is the right answer.

Explanation:

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8 0
3 years ago
The earth receives 1.8 ✕ 1014 kj/s of solar energy. what mass of solar material is converted to energy over a 24-h period to pro
oksano4ka [1.4K]
Before starting, we will convert all the givens into standard units as follows:
1.8 * 10^14 KJ/sec = 1.8 * 10^14 * 1000 = 1.8 * 10^17 J/sec
24 hours = 24 * 60 * 60 = 86400 second

Now, we are given that:
The earth receives 1.8 * 10^17 J/sec. We will begin by calculating the total energy received by the earth in 24-hours
Total energy = 1.8 * 10^17 * 86400 = 1.5552 * 10^22 Joules

Then we will get the mass from the following rule:
E = m * c^2 where:
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c is the speed of light = 3 * 10^8 m/sec

Substitute with the givens to get the mass as follows:
1.5552 * 10^22 = m * (3*10^8)^2
m = 172800 kg
5 0
3 years ago
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