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djyliett [7]
3 years ago
7

If a decrease in temperature accompanies a reaction, what occurred?

Chemistry
2 answers:
marusya05 [52]3 years ago
8 0
Released my friending
AleksAgata [21]3 years ago
3 0
Energy was released
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How many moles are in 9.12 x 1023 molecules of sugar?​
aleksandrvk [35]

Answer:

1.514 moles

Explanation:

For this problem you want to use dimensional analysis and cancel out your molecules of sugar and be left with moles of sugar. We know that 1 mole (of anything) = 6.022 x 10 ^ 23 molecules, so we should use that conversion to help us. Start with 9.12 x 10 ^23 molecules and divide by 6.022 x 10 ^ 23 molecules, and you will be left with moles.

Hope this helps!

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2 years ago
5. Which of these elements has the greatest atomic radius? *<br> Be<br> Mg<br> Ra<br> Ba
trapecia [35]
The answer is Ra
Atomic number for Be is 4

Atomic number for Mg 12

Atomic number for Ra 88

Atomic number for Ba 56
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3 years ago
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olga nikolaevna [1]

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Explanation:

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Question 5 (5 points)
Dima020 [189]

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They Are all O's/oberavtions, because inference is using facts and reasoning, which is not the case here.

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2 years ago
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Drag each tile to the correct location.
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