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Dominik [7]
3 years ago
13

The phase that is most likely to occur at high temperatures and high pressures is:

Chemistry
1 answer:
kogti [31]3 years ago
6 0
WELL IT DEPENDS ON WHAT IT DOING IT TO BUT TRY SOLID
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What is formed when 2 or more atoms are held together by covalent bonds?
Ksenya-84 [330]

The group of atoms held together by covalent bonds is called a molecule

7 0
3 years ago
If you start with 10ml of 0.75 m cu(no3)2 how much cu (s) in grams should be recovered in step #7
LenaWriter [7]
<span>0.48 grams. Not a well worded question since it's assuming I know the reactions. But I'll assume that since there's just 1 atom of copper per molecule of Cu(NO3)2, that the reaction will result in 1 atom of copper per molecule of Cu(NO3)2 used. With that in mind, we will have 0.010 l * 0.75 mol/l = 0.0075 moles of copper produced. To convert the amount in moles, multiply by the atomic weight of copper, which is 63.546 g/mol. So 0.0075 mol * 63.546 g/mol = 0.476595 g. Round the results to 2 significant figures, giving 0.48 grams.</span>
4 0
2 years ago
Why do the inner walls of a vacuum flask have a silver coating?
Citrus2011 [14]

<u>Answer</u>:

The inner walls of a vacuum flask have a silver coating to reduce heat loss by radiation.

<u>Explanation</u>:

The vacuum flask has an inner silver lining to prevent the transfer of  heat by radiation. Radiation is a process where the emission or transformation of energy happens in the form of wave or the  particles through the material medium.

Vacuum flask being working as thermal insulator helps in maintaining the substance its actual temperature for a long time. The silver lining acts as a reflector .It  prevents the heat radiation to released out of the flask.  

5 0
3 years ago
Read 2 more answers
Identify each of the highlighted materials as an element, a compound, or a mixture, and explain your reasoning.
Reika [66]

Answer:

These are compounds.

Explanation:

As it is formed by chemically bonding of two elements C ( carbon) and H (hydrogen) .

  1. Its not a mixture because mixture is Just dispersed of diferrent elements or a compound which are not in fix ratio
4 0
2 years ago
Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent?
andriy [413]

Answer:

Decreasing surface area of the solid in the liquid.

Explanation:

I don't know how to explain this without using. an example. So, here it is: If you were dipping bread in water, the bread would be completely soaked if you dipped the whole thing, but if you only allowed one part of the bread to be in the water, it would take longer for the water to soak all the way into it. The amount of surface area that is allowed to touch what is making the solid dissolve determines how quickly the whole thing will be dissolved.

3 0
3 years ago
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