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Amanda [17]
3 years ago
11

Under the Doppler Effect, an observer behind a moving wave source observes

Chemistry
2 answers:
Mumz [18]3 years ago
8 0

i think it is frequency correct me if i am wrong!!

disa [49]3 years ago
3 0
Attachment is the answer
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Question 7-Which of the following is not an acid-base neutralization reaction?
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Answer:- It is choice D. H_2SO_4+2NaCl\rightarrow 2HCl+Na_2SO_4

Explanations:- In general, a neutralization reaction is the reaction of an acid with base to form salt and water.

in first reaction the reaction is taking place between ammonia(a base) and hydrochloric acid(an acid) to form their salt(ammonium chloride). So, it is an acid-base neutralization reaction.

In second reaction, sodium hydroxide(a base) is reacting with acetic acid(an acid) to form their salt(sodium acetate) and water. So, it is an acid-base neutralization reaction.

In third reaction, Nitric acid is reacting with calcium hydroxide(a base) to form a salt(calcium nitrate) and water. So, it is an acid-base neutralization reaction.

In fourth reaction, sulfuruc acid is reacting a sodium chloride(a salt) to give a double replacement reaction. It is not an acid-base neutralization reaction as it's not taking place between an acid and base.

So, the correct choice is D. H_2SO_4+2NaCl\rightarrow 2HCl+Na_2SO_4

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3 years ago
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Recycling aluminum cans and taking shorter showers are two ways to practice the blank of natural resources
enyata [817]
Conservation, because you are conserving natural resources(water) and reusing aluminum cans which help the environment. Hope this helps!
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What has mass and takes up space?
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Matter buddy, ur welcome :)
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Help Please!!!!!!!!!!
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Answer:

L/EGFOU;T4444444444444444444444czgfryewi;adkb,SJJ>RL:IAO:YHSBRAGldOUSDHRIUITUER

Explanation:

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Why does water boils at a higher temperature than a non-polar solvent like ether?
trapecia [35]
<span>a large amount of energy is released when water dissociates into oppositely charged ions.</span>
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