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mojhsa [17]
3 years ago
12

If you burn a citronella candle near your picnic will it keep mosquitoes away

Chemistry
2 answers:
AlladinOne [14]3 years ago
6 0

Answer:

true

Explanation:

professor190 [17]3 years ago
3 0

Answer:

Thanks!!!

Explanation:

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Which of the following statements best compares the pH value of H3PO4 and HCl?
wel

Answer:

Option B. Both have a pH less than 7, but H3PO4 has a lower pH than HCl

Explanation:

Those are acid, so the pH would be < 7.

H₃PO₄ is a weak acid with 3 dissociations

HCl is a strong acid.

pH depends on [H]⁺

H₃PO₄  →  3H⁺  +  PO₄⁻³

HCl →  H⁺  +  Cl⁻

If both acid, have the same concentration, [H⁺]H₃PO₄ > [H⁺]HCl, that's why the pH from the phosphoric will be lower.

5 0
3 years ago
How many grams of CO2 are used when 6.0 g of O2 are produced? Express your answer with the appropriate units.
Ipatiy [6.2K]

Answer:

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8 0
3 years ago
What do you think is meant by the statement "the digestive system is very different
Kryger [21]
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7 0
3 years ago
Acid strength in a series of h−a molecules increases with increasing size of
-BARSIC- [3]
Hello there!

The statement that Acid strength in a series of H-A molecules increases with increasing size of A is True.

When only the size is involved, increasing the size will increase the Acid strength because as size increases, the H-A bond will become weaker as the atoms will be farther apart. Acid strength is related to the ability to release H⁺ ions and a weaker H-A bond will release H⁺ more easily. 

Have a nice day!
8 0
3 years ago
Write chemical equation for solid cadmium carbonate, water, and carbon dioxide
Alchen [17]
I think this is it
Cd(HCO3)2---->CdCO3+H2O+CO2

Sorry if this is wrong
4 0
3 years ago
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