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Stolb23 [73]
3 years ago
11

I really need some help!!!!!!

Chemistry
1 answer:
7nadin3 [17]3 years ago
7 0
The earth revolves around the Sun, which is at the centre of our solar system. The moon revolves around the earth as a natiral satellite.

Hope I helped!! xx
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3. Give an example of how carbon is transferred frem being in a living to a non-living<br> organism.
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Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

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Oxidation number ofAl2S12O7
Savatey [412]

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-2? if wrong im sorry please tell me what I did that was incorrect ty  Explanation:

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Instrument used to measure atmospheric pressure
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Answer: barometer

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3 years ago
What is the overall effect of adding a solute to a Solution
user100 [1]

Answer:

By adding the solute in to solution boiling point is increased while freezing point is decreased.

Explanation:

When solute in added into the solvent the boiling point of solvent increases for example,

Water is boiled at 100 °C, when sodium chloride is added its boiling point increased. Ions of salt interact with solvent and prevent the water molecules to escape from the surface and form gas molecules. In order to make it boiled solution must be heated above 100  °C.

But there is different case with freezing point. Freezing point is the state in which substance converted into the solid. At given temperature when solute is added into the solvent it prevent the formation of solid. It required time to decrease the temperature first and as the temperature is decreases solid is formed.

8 0
4 years ago
Which statements accurately describe binary star systems? Check all that apply. have more than two stars have stars that are alw
Westkost [7]

Answer:

have stars that might appear to wobble

often have one star that is brighter than the other

Explanation:

A binary star system is a star system made up of mostly two stars that moves round their common fixed center.

The two orbiting stars are gravitationally bonded to one another and they move round each other.

Most binary stars might appear wobble. One of the stars often appears brighter than the other.

6 0
3 years ago
Read 2 more answers
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