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UNO [17]
4 years ago
15

What is the name of the compound NiC03 * 8H20?

Chemistry
1 answer:
Hoochie [10]4 years ago
5 0

The answer is :

Nickel II carbonate octahydrate

The explanation:

-when Ni is the symbol of Nickel.

and CO3 is the symbol of carbonate group.

and both have 2 valence so, it will be write 2:2 = 1:1 → NiCO3 named Nickel caronae.

and any compound contain H2O will be named Hydrate and here we have 8 H2O so, i will e named octa (because of his 8 ) octahydrate

so, the compound will be Nickel II carbonate octahydrate

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zlopas [31]

Answer:

A. modern organisms closely resembling fossils

Explanation:

Fossils are defined as the preserved remains or traces of living organisms from past.

Fossils are considered as an evidence for evolution because they represent the existence of life on earth and shows the difference between the life in past that life on earth today. With the help of fossil, it is easy to determine the age of fossils which further help to determine that how modern organisms have evolved from the past.

Hence, the correct answer is "A. modern organisms closely resembling fossils".

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3 years ago
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4 years ago
Read 2 more answers
7 on the pH scale represents what?
Nitella [24]

Answer:

seven on the ph scale is the neutral point

Explanation:

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3 0
2 years ago
A motorcyclist changes the velocity of his bike from 20.0 meters/second to 35.0 meters/second under a constant acceleration of 4
mars1129 [50]

The time needed by the bike to reach the final velocity is 3 .75 seconds ,Option C is the write answer.

<h3>What is Velocity ?</h3>

It is defined as the distance covered by an object in a given amount of time. It is a vector quantity , its unit is m/s , km/hr etc.

It is given in the question that

Initial Velocity = 20m/s

Final Velocity = 35m/s

Acceleration = 4m/sq.s

Time = ?

The equation of motion

v = u +at will be used

35 = 20 + 4 * t

15 = 4* t

t = 3.75 seconds

Therefore the time needed by the bike  to reach the final velocity is 3 .75 seconds.

To know more about Velocity

brainly.com/question/18084516

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