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Brut [27]
4 years ago
14

Why is very important to wait until the crucible is fully coleed to room temperature before weighting

Chemistry
1 answer:
Mars2501 [29]4 years ago
3 0

If you do not wait until the crucible is at room temperature, its density will vary constantly until it reaches this temperature, since density is a property that varies with temperature. For the above reason, weighing a hot crucible will not allow the measurement of a constant weight on the balance, since <u>the weight of the object will be constantly changing, which will not allow a constant reading.</u>

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In lipid bilayers, there is an order-to-disorder transition similar to the melting of a crystal. Comparing a lipid bilayer that
prisoha [69]

Answer:

The lipid bilayer made up of Palmitic acid will have a higher melting transition temperature

Explanation:

The one with a higher melting transition temperature is the lipid layer with a higher melting temperature

Melting temperature of palmitoleic acid = -0.5°C

Melting temperature of palmitic acid = 62.9°C

Hence the lipid bilayer made up of Palmitic acid will have a higher melting transition temperature

6 0
3 years ago
Which of the three minerals contain calcium carbonate?<br> A. salt<br> B. chalk<br> C. talcum
never [62]

Answer:

Answer choices A, B, and C all contain a certain level <em>(or amount, if you will)</em> of <u>Calcium Carbonate</u>, but <u><em>B. chalk</em></u> contains the most amount out of all three.

Explanation:

I hope that this was helpful! (✿◠‿◠)

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4 0
2 years ago
How do you find the theoretical yleld of a chemical reaction?
kvv77 [185]

Answer:

Explanation:

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6 0
3 years ago
Perform the following calculations. Express the answers with the correct number of significant figures.
11Alexandr11 [23.1K]
Since there are no conversions to be done just add them as is
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7 0
3 years ago
How many moles of C are needed to react with 0.500 moles of SO2?
Natali5045456 [20]
In reaction 2 moles of SO2 reacts with 5 moles of C...

So for 0.5 mole of SO2 we should have the same ratio ...

C/SO2 = 5/2

Is that clear?
8 0
4 years ago
Read 2 more answers
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