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Sauron [17]
3 years ago
5

Question 4

Chemistry
1 answer:
ruslelena [56]3 years ago
7 0

Answer:

Physical change

Explanation:

Brainliest would be appreciated

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Answer:

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Explanation:

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How many moles of Na2CO3 are in 100.0ml of a 2.0M solution?
Anna [14]

M = moles of solute / liters of solution

2.00 M = x / 10.0 L

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Suppose the molarity was listed as 2.0 M (two sig figs). How to display the answer? Like this:

20. mol

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Draw a chair conformation for cis-1-bromo-2,4-dimethylcyclohexane showing equatorial and axial positions at the carbon atoms bea
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Answer:

See attachment.

Explanation:

Mono-substituted cyclohexanes are more stable with their substituents in an equatorial position. However, with poly-substituted cyclohexanes, the situation is more complex since the steric effects of all substituents have to be taken into account. In this case, you can see that <u>the interconversion is shifted towards the conformation in the bottom because there is less tension between the substituents</u>.

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The model of the atom where the central core contains protons and neutrons surrounded by a cloud of electrons is best described
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I am thinking the answer is B. I think this because Bohr had a model similar, but his was lacking the cloud of electrons. His just had electrons orbiting the nucleus. 
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4 0
4 years ago
Read 2 more answers
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