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Ne4ueva [31]
3 years ago
10

The world's population:

Chemistry
2 answers:
Whitepunk [10]3 years ago
7 0

Answer:

is unequally distributed

Explanation:

because my finals say so

Phantasy [73]3 years ago
5 0
You can rule out "all of the above" and "decreases slightly each year" because human population is increasing.

Agricultural areas is Farm land which does not have high population. This leaves world population is unequally distributed.. Which is true
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What is the oxidation state of each element in the compound CaS04? Include +or - in your answer as appropriate
borishaifa [10]

Answer:therefore the oxidation state of sulphur is +6 in the compound CaSO4.

Explanation:

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3 years ago
A bottle of acetone (fingernail polish remover) contains 55.0 mL of acetone. If the acetone has a mass of 43.5 g, what is the de
mihalych1998 [28]
If you were to use the formula to find density which is D=M/V and plug in your numbers M which stands for mass and and plug in your numbers for V which what’s for Volume and should be a number in mL and then divide them you should get your answer. So 43.5g divided by 55.0mL and your density would = 0.79g/mL
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3 years ago
What are some possible ways these rocks were formed? Be sure to discuss all 3 rocks.<br> pls help me
horrorfan [7]

The brownish rock is a sedimentry rock was formed when things like sand, mud, or pebbles get laid down in layers. Eventually the layers are lithified.

The grey rock is a metamorphic rock and was when other rocks are changed because of heat or pressure. Earth movements can cause rocks to be deeply buried or squeezed. As a result, the rocks are heated and put under great pressure. They do not melt, but the minerals they contain are changed chemically, forming metamorphic rocks.

The red dots rock is an igneous rock. Igneous rock forms when hot, molten rock crystallizes and solidifies.

8 0
3 years ago
Read 2 more answers
Burning 1 kg of coal releases about 3 million joules of energy. If you could use all of the chemical energy to lift another kilo
Katarina [22]

I could lift 3.06 x 10⁵ m high

<h3>Further explanation </h3>

Energy is the ability to do work. Energy can change from one energy to another

Potential energy is the energy that an object has because of its position

The potential energy can be formulated:

Ep = m. g. h

E = potential energy of an object, joule

m = object mass, kg

g = gravity acceleration, m / s²

h = height of an object, m

energy of coal = 3.10⁶ J

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\tt h=\dfrac{E}{m.g}\\\\h=\dfrac{3.10^6}{1\times 9.8}=3.06\times 10^5`m

5 0
3 years ago
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fiasKO [112]

Answer:

Josue

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On the other hand Ernest Rutherford laid out the foundation for a more accurate understanding of atomic structure in his nuclear model of the atom. According to Rutherford, the atom consists of a positively charged massive core called the nucleus around which electron move in orbits. His idea was akin to the solar system with the sun at it's core and planets moving around the sun in orbits.

This his idea of the nuclear theory was held as fundamentally correct by Neils Bohr's model of the atom. Hence, his nuclear theory of the atom was a significant milestone in our present day understanding of atomic structure.

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3 years ago
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