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Leya [2.2K]
3 years ago
7

Please help me with these

Chemistry
1 answer:
padilas [110]3 years ago
8 0
<span>The physical layers of the inner core and outer core form a single compositional layer.

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A gaseous fossil fuel produced from organic matter that is used to heat homes and cook
Nostrana [21]

Answer:

Natural gas

Explanation:

Natural gas is a gaseous fossil fuel produced from organic matter that is used to heat homes and cook food.

Natural gas is one of the most volatile part of hydrocarbons that exist together with fossil fuel.

  • In a reservoir, natural gas is usually on top of the fossil fuel reserve.
  • It can also be distilled from crude oil as they rises up on top of the column first due to their low boiling point
  • The gas mixture is made up light hydrocarbons from methane to hexane.
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3 years ago
How many molecules of liquid ethanol (CH3H2OH) are in 1.00 mL of ethanol, given its density is 0.789 g/mL?
Arisa [49]
To get the molecules contained in liquid ethanol, we multiply the density to the given volume, that is equal to 0.789 g ethanol. In this case, we divide by molar mass and multiply by the constant, Avogadro's number. The answer is 1.033 x 10^22 molecules.
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3 years ago
BOTH acids and bases
wlad13 [49]

Answer:

Hello There!

Explanation: Your Answer will be, D) conduct electricity in water.

Both acids and bases conducts electricity and water.

When acid dissolves in water, they are good electrolytes.

When bases dissolves in water they are good electrolytes.

Electrolytes are liquid or molten substances that are able to conduct electricity.

they conduct electricity by the use of their ions in solution.

Since acid and bases ionize in solution, they will conduct electricity.

An acid is a substance that produces excess hydroxonium ion in solution.

A base produces excess hydroxyl ions in solution. Hope This Helps!

8 0
3 years ago
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Are there other universes ??
Natasha2012 [34]

Answer:

Some theories say that there is only one universe and that everything is inside the universe and there is nothing outside the universe but some other theories say that there are more Universes which has the opposite copy of all the planets in our universe.

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A ________ sample of urine is the type of urine specimen most commonly collected.
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<span>random urine specimen is a common sample

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