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zhenek [66]
3 years ago
11

Which of the following are pure elements

Chemistry
1 answer:
iris [78.8K]3 years ago
5 0

Answer: A

Explanation:

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What will happen if you add a mild acid to a solution that is buffered at ph = 7?
allsm [11]
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3 years ago
Which of the following is a neutralization reaction?A. Na2O(s) + H2O(a) rightarrow 2NaOH(s).B. 4Na(s) + O2(g) rightqrrow 2Na2O(s
Alisiya [41]

Answer:

C. NaOH(s) + HCl(aaq) rightarrow NaCl(s) + H2O(aq)

Explanation:

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Simply, we can write,

acid + base --->  salt + water

Here in option (C),

NaOH is sodium hydroxide is an base

HCl is hydrochloric acid

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H20 is water

So, option C).  NaOH(s) + HCl(aaq) -----> NaCl(s) + H2O(aq)   is a neutralization reaction.

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4 years ago
26. Which of the following Is a reason that Venus is not ideal for supporting life?
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