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Strike441 [17]
2 years ago
7

The moon changing positions causes all of the following except one of these. which is not caused by the moon changing positions?

Chemistry
1 answer:
vladimir1956 [14]2 years ago
8 0

Answer:

A.phase of moon

I hope it helps you

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Consider the element carbon. How many electrons can be found in a carbon atom? How many are valence electrons?
Eva8 [605]

Answer:

option B= 6 : 4

Explanation:

Properties:

1. Carbon have six electron and six proton.

2. The two electrons are present in first shell while remaining of four electrons are present in the second shell.

3. it is non-metallic element and present in the group fourteen of periodic table.

4. its atomic mass is 12.0107 u.

5. its melting and boiling point is 3550 °C and 4827 °C respectively.

Uses:

1. it is used as a fuel in the form of coal.

2. in the form of graphite it is used in dry cells, as a lubricant, in pencil and high temperature crucible.

3. it is also used in jewelry in the form of diamond and because of its hard nature used in industries for drilling, polishing, cutting and grinding.

4. carbon black powder is used in printer ink.

5. its most common alloy with iron is steel.

6. it form variety of compound with number of other elements like nitrogen, hydrogen, oxygen etc.

Electronic configuration:

1s2, 2s2, 2p2

Isotopes of carbon:

There are fifteen isotopes of carbon from C8 - C22. The isotopes  C12 and C13 are stable while C14 is radioactive.

4 0
3 years ago
What are the physical properties of earths layers?
ohaa [14]
There are 5 layers. The Lithosphere, the Asthenosphere, the outer core, the inner core and the mantel.
7 0
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What are the chemical properties of water?
Bezzdna [24]
It's a compound of hydrogen and oxygen
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Kipish [7]

Answer:

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The neutron was not discovered until 1932, more than thre
Llana [10]

Answer:

<em>Correct option is D) The neutron has a neutral charge, which made it impossible to discover using  previous experiments with positive and negative charges.</em>

Explanation:

The protons are the positively charged particles of an atom. The electrons are the negatively charged particles of an atom. As both the particles carry some kind of charge i.e either positive or negative, hence their discovery was easier.

The neutrons are the part of an atom which are neutral and do not carry any charge. Hence, their discovery took a more longer time as compared to the discovery of electrons and protons.

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