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Leokris [45]
2 years ago
8

2. Newton began his academic career in 1667. For how long was he a working scientist? Was he a very productive scientist? Justif

y your answer.
Chemistry
1 answer:
Alla [95]2 years ago
5 0
The title of Scientist was formally bestowed upon Sir Isaac Newton when he was
awarded the Merit Badge in Science at the age of 15, and he remained a Scientist
until he died, at the age of 84, on March 20, 1727, for a total duration of 69 years.

Yes, He was a productive scientist.He is one of the most important contributors to our understanding of how the universe works.
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65g of nitric acid are produced in a reaction. 2.5g of platinum are added to the reaction vessel at the start of the reaction to
AysviL [449]

Answer:

2.5 g of platinum

Explanation:

Recall that a catalyst is a specie added to a reaction system to increase the rate of reaction. A catalyst does not participate in the chemical reaction hence it remains unchanged at the end of the chemical reaction. A catalyst merely provides an alternative reaction pathway by lowering the activation energy of the reaction system. Hence a catalysed reaction usually proceeds faster with less energy requirement than the uncatalysed reaction.

Since the catalyst does not participate in the reactions and remains unchanged at the end of the reaction, the mass of platinum will remain the same (2.5g). The mass can only change if a specie participates in the chemical reaction. Hence the answer.

6 0
2 years ago
Will is learning about a new kind of plastic used to make models. He learns that infrared light is absorbed by the plastic, X-ra
tamaranim1 [39]

Answer:

no it dosen't matter

Explanation:

because it absorbed the light so it had to damage it.

8 0
2 years ago
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When an electron of an atom falls from a higher energy level to the ground state, the atom loses 9.4145 x 10-25 joules of energy
Ann [662]
E = \frac{hc}{wavelength} 

given E = 9.4145E-25
h = 6.626E-34
c = 2.998E8
sub values into the equation above, and solve for wavelength.
You will get 0.211m
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2 years ago
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n the diagram shown, when an object ‘X’ is brought near the ring shaped magnet, the magnet moves away from it. Four friends are
kati45 [8]

Answer:

Akash

Explanation:

it could be a magnet with the same poles facing eachoher

6 0
2 years ago
Which describes any compound that has at least one element from group 17?
Contact [7]
The answer is HALIDE.
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