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Rainbow [258]
3 years ago
6

During the water cycle, water from rivers, streams, lakes, and oceans evaporate into water vapor . Then, the water vapor rises i

nto the cool atmosphere and condenses into precipitation . For evaporation to occur, heat and energy must be added to the cycle. Where does this heat and energy come from ?
A. Volcanic eruptions
B. The sun
C. The earths core
D. Global warming
Chemistry
1 answer:
Temka [501]3 years ago
6 0

Answer:the sun

Explanation:

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Which unstable element is used to determine the age of volcanic rock?
77julia77 [94]

<em><u>Answer:</u></em>

Potassium.

<u><em>Explanation:</em></u>

Therefore, the answer is Potassium. You might think, that because we were talking about Argon as well, the answer is both of them, but no. Everything starts with Potassium but it decays into Argon during the process.

6 0
3 years ago
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A bottle of soda has a PH of 3.
BaLLatris [955]

Answer:

The new pH of the solution = 6

Explanation:

Given

pH of bottle of Soda is 3

As we know that

pH = -log [H+]

We will derive the hydrogen ion concentration when pH is 3

3 = - log [H+]

Taking anti-log on both the sides, we get -

H+ ion is equal to 10^{-3}

When the hydronuim ion concentration reduces by \frac{1}{1000} of the original concentration, the new hydrogen ion concentration becomes

\frac{1}{1000000} = 10^{-6}

The new pH is

= - log [ 10^{-6}]\\= 6

4 0
3 years ago
in the modern wave-mechanical model of the atom, the orbitals are regions of the most probable location of
irina [24]

The orbital is the probable location of the electron of an atom.


Always remember the difference between Bohr and wave-mechanical model in terms of electrons!  

Your questions answer is Electron!  

But you should also know Bohr said electrons are in orbitals in a fixed proportion, but modern wave mechanical disagrees with this and said electrons are arranged in a very complex random proportion in a region called orbital!  

Hope this helped


have a smiley day (:

5 0
4 years ago
A theory should be able to explain the relevant data and lead to correct predictions.
olya-2409 [2.1K]
The correct answer is true
5 0
3 years ago
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Car A has a mass of 1.200 kg and is traveling at a rate of 22 km/hr. Car B has a mass of 1200 kg and is traveling in the
Zigmanuir [339]

Answer:

Car B has a greater momentum than car A

Explanation:

Given data:

Mass of car A = 1200 Kg

speed of car A = 22 km/hr

Mass of car B = 1200 Kg

speed of car B = 25 Km/hr

Solution:

For car A:

p = mv

p = 1200 Kg × 22 km/hr

p = 26400 kg.km/hr

For car B:

p = mv

p = 1200 Kg × 25 km/hr

p = 30,000 kg.km/hr

7 0
3 years ago
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