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Ket [755]
3 years ago
11

Which chemical equation represents a double replacement reaction?

Physics
1 answer:
liq [111]3 years ago
5 0

D. NaOH + HCI NaCl + H,0

Explanation:

The last option is a double displacement/replacement reaction.

This reaction is a neutralization reaction in which an acid combines with a base to produce salt and water only.

       NaOH    +   HCl   →   NaCl  + H₂O

  • A double displacement reaction is one that occurs between ionic compounds.
  • In this reaction, there is an actual exchange of reaction partners.

One of the following conditions serves as a driving force;

  • Formation of water or any other non-ionizing compound
  • Liberation of gases
  • Formation of a precipitate

learn more:

Precipitate formation brainly.com/question/8896163

#learnwithBrainly

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emmainna [20.7K]

Answer: C

Explanation:

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3 years ago
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Which items in this image are electrically conductive? Check all that apply.
balu736 [363]

Answer: a and d

Explanation: A.) the power lines themselves

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4 0
3 years ago
What from the following list of statements about vectors is definitely true? (section 3.3) The magnitude of a vector can be smal
Mashcka [7]

Answer:

"Magnitude of a vector can be zero only if all components of a vector are zero."

Explanation:

"The magnitude of a vector can be smaller than length of one of its components."

Wrong, the magnitude of a vector is at least equal to the length of a component. This is because of the Pythagoras theorem. It can never be smaller.

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6 0
3 years ago
A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, typically 2
butalik [34]

Answer:        

Number of turns in secondary will be 7

Explanation:

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Number of turns in the primary is N_p=3575

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We have to find the number of turns in secondary

We know that \frac{N_p}{N_s}=\frac{V_p}{V_s}

So \frac{3575}{N_s}=\frac{120}{0.235}

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6 0
3 years ago
What name is given to the system that distributes electricity from power stations around the UK?
steposvetlana [31]

Answer:

The National Grid is the system operator of Great Britain's electricity and gas supply. This includes England, Scotland and Wales. It is the company that manages the network and distribution of electricity and gas that powers all our homes and businesses.

Explanation:

5 0
2 years ago
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