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ololo11 [35]
3 years ago
8

What is the number of moles of 27.6 grams of lithium

Chemistry
1 answer:
Leya [2.2K]3 years ago
6 0
Lithium's atomic weight is 6.94 g/mol.

27.6 g Li (\frac{mol}{6.94 g}) = 3.98 mol Li

Need anything else?

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PLS help
viktelen [127]

Answer:

d . Sc2O5

Explanation:

Hello,

In this case, when forming oxides from a metal and oxygen, for us to find out each element's subscript, we must exchange them as shown below, considering +5 for scandium:

Sc^{+5}_2O^{-2}_5

For that reason, the answer is d . Sc2O5

Best regards.

3 0
3 years ago
Read 2 more answers
For the reaction 2KClO3 - 2KCI+ 302 how many moles of potassium chlorate are
Zarrin [17]

Answer:

the answer will be Oa. 2.26

3 0
2 years ago
What is the ratio by atoms of elements present in hafnium phosphite?
timurjin [86]

3:6:2 is the correct answer

3 0
2 years ago
Unknown # 41
sveta [45]

Answer:

KI

Explanation:

From the question, we can see that a qualitative analysis of the compound shows that it has a lilac flame colour. The lilac flame colour corresponds to the potassium ion (K^+).

Again, the test of addition of HNO3(aq) and AgNO3(aq) to a solution is a test for halogens. If the result is a green precipitate, then the ion present is the iodide ion (I^-).

Hence, the compound must be KI.

4 0
2 years ago
You measure water in two containers:a 10-mL graduated cylinder with marks at every mL, and a 1-mL pipetmarked at every 0.1 mL. I
Reptile [31]

Answer:

B. 0.1 mL

Explanation:

The solution explanation has been attached.

6 0
3 years ago
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