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Troyanec [42]
3 years ago
11

Which process best describes the cause of lightning

Chemistry
1 answer:
faust18 [17]3 years ago
7 0
The rapid transfer of electrons from the ground to the charged clouds, causing a brilliant flash of light.
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Gallium (Ga) consists of two naturally occurring isotopes with masses of 68.926 and 70.925 amu. (a) How many protons and neutron
pav-90 [236]

Answer:

neutrons_{Ga-69}=38\\\\neutrons_{Ga-71}=40

Explanation:

Hello!

In this case, since isotopes of the same element have the same number of protons and electrons but different atomic mass, we can compute the number of neutrons by subtracting the number of protons to the atomic mass of the isotope; thus, for Ga-69 and Ga-71 (rounded up to whole numbers), we obtain:

neutrons_{Ga-69}=69-31=38\\\\neutrons_{Ga-71}=71-31=40

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3 years ago
What does this ruler read as ? I need some help !!
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Answer: 41 7/10

Explanation:  The mark is on the seventh out of ten marks

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3 years ago
List two assumptions of the Kinetic Molecular Theory.
Phantasy [73]
These are 3 assumptions that i know for a fact. Hope this helped.

1.Gas particles are continuous, rapid, random motion. They therefore possess kinetic energy, which is energy of motion.

2.There are no forces of attraction between gas particles.

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8 0
4 years ago
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_____ is the breakdown of rock by natural forces and chemical changes. A. Erosion B. Weathering C. Crystallization D. Metamorphi
sp2606 [1]

Answer:

Weathering is the breakdown of rock by natural forces and chemical changes

Explanation:

The air and water (rain) are natural forces that breaks down rocks

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3 years ago
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rewona [7]

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