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harina [27]
3 years ago
6

What two things effect the amount of kinetic energy an object has?

Chemistry
1 answer:
marta [7]3 years ago
3 0

Answer:

mass and speed

Explanation:

the motion of an object depends on how fast it's travelling and also how much mass it has

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Potassium atomic number a) 27 b) 67 c) 19
BlackZzzverrR [31]

Answer:

C

Explanation:

19 is the answer, because it is the atomic number of potassium. Hope it helps!

6 0
3 years ago
Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part compl
allochka39001 [22]

Answer:

2.775 s.

Explanation:

<em>The half-life time for a first order reaction = 0.693 / k.</em>

Where, k is the rate constant of the reaction.

∴ The half-life time = <em>0.693 / k</em> = (0.693) / (0.271 s⁻¹) = 2.775 s.

4 0
3 years ago
Which of the following is not found in the tropical rainforest?
natita [175]

Answer:

B. Wild Pigs!!!!!!!!

4 0
3 years ago
Read 2 more answers
Express the pictured problem as a chemical equation.
KatRina [158]
It already is a chemical equation just copy that exact thing

8 0
3 years ago
Read 2 more answers
In some chemical reactions, electrons are transferred from one substance to another, but there is no net gain or loss of electro
Natali [406]

Answer and Explanation:

The equation that depicts oxidation of neutral atom A is  shown below:

\rightarrow A^+ + e^-

This is because one species is losing electrons due to oxidation. The species possesses positively charged after losing electrons, the magnitude of which is proportional to the number of electrons lost.

The net charge will be equivalent on both sides of the equation, too.

Therefore all other options are not correct

The equation that depicts the decline of neutral atom X is

X + e^-  \rightarrow  X^-

It is how a cell gains electrons by reduction. The species obtains a negative charge upon possessing electrons, whose magnitude is equivalent to the amount of electrons gained.

The net charge will be equivalent on both sides of the equation, too.

Therefore all other options are not correct

4 0
4 years ago
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