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Slav-nsk [51]
3 years ago
11

2. This graph shows the energy involved in a reaction involving two molecules. Describe what is happening or what the state of t

he reaction is at A, B, C, and D. Then tell if this is an exothermic or an endothermic reaction.
Chemistry
1 answer:
blagie [28]3 years ago
6 0
If you think of it endothermic is when there is energy needed for the reaction to occur and exothermic is when the reaction releases energy
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If a microgram is one millionth of a gram (0.000 00 1 g), how many micrograms are there in one gram?
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There are One million micrograms in a gram

Explanation:

A microgram is one Millionth of a gram therefore it take one million of them to equal one gram

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A 0.229-g sample of an unknown monoprotic acid is titrated with 0.112 m naoh. the resulting titration curve is shown here. part
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4 0
3 years ago
4.00 moles of CU(CN)2<br><br>Find the number of grams ​
UNO [17]

Hey there!

Cu(CN)₂

Find the molar mass.

Cu: 1 x 63.546 = 63.546

C: 2 x 12.01 = 24.02

N: 2 x 14.07 = 28.14

-----------------------------------

                      115.706 grams

The mass of one mole of Cu(CN)₂ is 115.706 grams.

We have 4 moles.

115.706 x 4 = 463

4.00 moles of Cu(CN)₂ has a mass of 463 grams.

Hope this helps!

6 0
3 years ago
What is empirical and moleculer formula?.
den301095 [7]
The molecular formula shows the exact number of molecules. Therefor, the empirical formula is the simplest formula of the molecular formula
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represent rutheniums first 36 electrons using the chemical symbol for krypton written inside the brackets
kirza4 [7]

Answer:

[kr] hd^75s^1

Explanation:

7 0
3 years ago
Read 2 more answers
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