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Drupady [299]
2 years ago
8

1. Which is conduction?

Chemistry
1 answer:
Karo-lina-s [1.5K]2 years ago
3 0

Answer:

1. D

2. A

3. This question doesn't make sense

4. D

5. B or C

Explanation:

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Please answer this question
ZanzabumX [31]

Answer:

Is the fixed number of water molecules present in one formula unit of a substance

Explanation:

When copper sulphate is heated in a china dish, the blue colomed crystal changes to a white powder due to the removal of molecules of water of crystallization

6 0
3 years ago
Which characteristic of money explains why an old dollar is worth as much as a crisp, new dollar?
raketka [301]

The characteristic is uniformity.

<h3>Uniformity of money</h3>

Money is said to be uniform because irrespective of the nature it exists, the same amount must have the same purchasing power.

For example, a dollar in paper form and a dollar in coin form must be able to buy the same 1 dollar worth of goods.

Thus, a dollar bill, irrespective of its age, has the same purchasing power as a new, crisp dollar bill.

More on uniformity of money can be found here: brainly.com/question/17039370

#SPJ1

5 0
2 years ago
Which of the following statements best describes the current atomic theory
blagie [28]
You did not provide possible answers, but one possible might be that the current atomic theory is so sound and plausible that there should not be anything that could change it in the near future.
3 0
4 years ago
Will NaCl be soluble or insoluble
attashe74 [19]

NaCl is salt to it is obviously SOLUBLE :)

6 0
3 years ago
A certain first-order reaction is 27.5 percent complete in 8.90 min at 25°C. What is its rate constant?
jeyben [28]

Answer:

k= 0.145min^{-1}

Explanation:

Hello there!

In this case, according to the given information, it turns out necessary for us remember that the first-order kinetics is given by:

ln(A/A_0)=-kt

Whereas the 27.5% complete means A/Ao=0.275, and thus, we solve for the rate constant as follows:

k=\frac{ln(A/A_0)}{-t}

Then, we plug in the variables to obtain:

k=\frac{ln(0.275)}{-8.90min}\\\\k= 0.145min^{-1}

Regards!

4 0
3 years ago
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