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alisha [4.7K]
3 years ago
11

? Which of the following correctly describes an acidic solution at 25°C?

Chemistry
1 answer:
makvit [3.9K]3 years ago
4 0

Answer: [H3O+] > [OH-] and Kw = 1 x 10 -14

Explanation:

i just had this question and tried to look it up and i got it right by guessing my bad but i hope this is ur answer as well

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Identify the double displacement reaction. 3Pb 2h 3PO 4 ⟶ 3H 2 Pb 3(PO 4) 2 2NO 2 ⟶ 2O 2 N 2 2NaBr Ca(OH) 2 ⟶ CaBr 2 2NaOH 2NH 3
IRISSAK [1]

Reaction 3 is the double displacement reaction.

Double displacement reaction occurs when the negatively and the positively charged ions of the compounds interchange their position when the new compound in the product is formed.

<h3>Which is a double displacement reaction?</h3>

In the <u>first reaction</u>, the element lead (Pb) is not an ion and no exchange of the cations or the anions occurs hence it is not a double displacement reaction.

In the <u>second reaction</u>, one compound is getting split into two new compounds and is a decomposition reaction.

In the <u>third reaction</u>,  \rm Br^{-} in \rm 2NaBr and \rm (OH)_{2} in \rm Ca(OH)_{2} are anions and cations and exchanges their places to produce two new compounds  \rm CaBr_{2} + 2NaOH.

In the <u>fourth reaction</u>, a single compound is generated as the result of the combination reaction and hence, it is not the double displacement reaction.

Therefore, \rm 2NaBr + Ca(OH)_{2} \rightarrow CaBr_{2} + 2NaOH is the double displacement reaction.

Learn more about double displacement reaction here:

brainly.com/question/10091171

3 0
2 years ago
Which of these is a mixture
goldfiish [28.3K]
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3 years ago
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A compound is found to contain 33.3%
kakasveta [241]

Answer: CaSO3

Explanation:Please see attachment for explanation

3 0
3 years ago
What is the mass of the beaker plus water
grigory [225]
To find the mass of the water, you will first need to find the mass of a dry 100 mL beaker.-------51.377g 
<span>Next, find the mass of the 100 mL beaker containing your water sample. ------------------------ 101.23g  hope this helps :()</span>
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taurus [48]

Answer:

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Explanation:

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