An oxidation number is the electrical charge a molecule or ion appears to have as determined by a set of arbitary rules.
Answer:
a molecule is the <u>smallest</u> particle of a substance that can normally exist independenty
The element from those four that is a noble gas is krypton.
Answer:
Models make some things easier to understand.
Measurements can be made only on models.
Models help scientists visualize things they can’t see.
Models are perfectly accurate representations of objects.
Scientists can analyze models to make predictions.
Explanation:
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Answer:
<h2>78.13 J</h2>
Explanation:
The kinetic energy of an object can be found by using the formula
m is the mass
v is the velocity
From the question we have
We have the final answer as
<h3>78.13 J</h3>
Hope this helps you
