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quester [9]
3 years ago
11

A temperature change in a reaction indicates

Chemistry
1 answer:
Alex787 [66]3 years ago
7 0
A temperature change in a reaction indicates a “( physical change)”
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HELPP!<br> how many grams are in 1.50 x 10(24) atoms of copper?
svlad2 [7]

Answer:

2266g

Explanation:

mass = no.of molecules /6.o23*1o(23) * molar mass

molar mass of co2= 44g /mol

1.5 .10^25/6.023 .10^23 =51.5 moles of co2

51.5 .44g/mol =2266 g

4 0
3 years ago
Explain why you would want to keep some, but not all, receipts as part of your financial records.
miss Akunina [59]

Answer:

Explanation:

Let's try and figure out the ones you don't keep.

Receipts from the dollar tree. You can't return what you bought and you only paid a dollar. It's not worth it.

Food receipts. You can't return it and unless you want to itemize what you spend / month and on what, they don't serve any purpose.

Now figure out which ones you would want to keep

1. Anything pertaining to medical perscriptions. I don't know how it works in the United States, but in Canada we are allowed to deduct only medications with a DIN number.

2 Anything that you would use for travelling that is not for pleasure (ie it is a business expense). So if you are a salesman and your territory is from A to B you would deduct meals, mileages, motels if you must stay away from home

3 In the states some tax receipts are deductible, so you might want to save those.

6 0
2 years ago
Read 2 more answers
Is it possible to convert between moles and mass?
lubasha [3.4K]

Answer:

Yes, if you're talking about molar mass or grams

Explanation:

Hope this helps!

5 0
2 years ago
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When you use a crowbar to lift a large rock, you are working against the force called
Ne4ueva [31]
Gravity. The rock is being pushed down and you are counteracting that force with a crowbar pushing it upward.
7 0
3 years ago
Can animals detect radio waves
Svetach [21]

Answer:

No.

Explanation:

No organism can detect X-rays or radio waves

4 0
2 years ago
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