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3 years ago

What is produced during the replacement reaction of Cu(NO3)2 and Zn? ZnNO3 Cu Zn Cu(NO3)2 ZnCu 2NO3 Zn(NO3)2 Cu

SAT

1 answer:

Pachacha [2.7K]3 years ago

6 0

Answer:

Zn(NO3)2 +Cu

Explanation:

Replacement reaction is a type of chemical reaction in which an element react with a compound and take the place of another element in that compound.

Zn is more reactive than Cu, therefore Zn replaces cu from CU(NO3)2 to form Zn(NO3)2 +Cu

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Day and night kennel charges $20 per day plus a one-time food fee of $15 to board a pet. Bark time hotel charges $30 per day plu

Sonbull [250]

The system of equation that represents this situation is y = 20x + 15 for day and night kernel and y = 30x + 5 for bark time hotel.

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the rate of change and b is the initial value of y.

Let y represent the total charges for for boarding a pet in x days.

Day and night kennel charges $20 per day plus a one-time food fee of $15 to board a pet. Hence:

y = 20x + 15

Bark time hotel charges $30 per day plus a one-time food fee of $5. Hence:

y = 30x + 5

The system of equation that represents this situation is y = 20x + 15 for day and night kernel and y = 30x + 5 for bark time hotel.

Find out more at: brainly.com/question/21835898

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