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Hatshy [7]
2 years ago
12

●

Chemistry
1 answer:
WITCHER [35]2 years ago
3 0
As a solution becomes more basic (aka alkaline), the concentration of (H3O+/OH-) ions increases and the concentration of (H3O+/OH-) ions decrease
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What is the SI unit used to measure weight?
stepladder [879]

Answer:

The si unit used to measure weight is kilogram /kg

7 0
2 years ago
Why does his teacher ask him to balance the equation by including the correct coefficients? to show that most molecules exist in
Ne4ueva [31]

Answer:

to show that atoms are conserved in chemical reactions

Explanation:

3 0
3 years ago
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How many molecules are present in 4.5<br> moles of H2O?
Gekata [30.6K]

Answer:

Mole of the H2O = 4.5

Number of molecules =4.5 multipled by avogadro's number.

6 0
3 years ago
How many grams of ag can be formed from 5.50 grams of ag2o in the equation: 2ag2o (s) → 4ag (s) o2 (g)?
oee [108]

From the given balanced equation we have find out the amount (in gm) of Ag formed from 5.50 gm of Ag₂O.

2Ag₂O(s) → 4Ag (s) + O₂ (g)

We know, molecular mass of Ag₂O= 231.7 g/mol, and atomic mass of Ag= 107.8 g/mol. Given, mass of Ag₂O=5.50 gm. Number moles of Ag₂O=\frac{5.50}{231.7}= 0.0237 moles.

From the balanced chemical reaction we get 2 (two) moles of Ag₂O produces 4 (four) moles of Ag. So, 0.0237 moles of Ag₂O produces \frac{4X0.0237}{2} moles=0.0474 moles of Ag= 0.0474 X 107.8 g of Ag=5.11g Ag.

Therefore, 5.50 g Ag₂O produces 5.11 g of Ag as per the given balanced chemical reaction.


4 0
3 years ago
I’m not sure on this!!!
Talja [164]

Answer:

-14

Explanation:

H=-6

G=7

therefore,

=7(H)+4(G)

=7(-6)+4(7)

=-42+28

=-14

8 0
3 years ago
Read 2 more answers
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