The correct answer would be A i think hope it helps
C . is a compound. So I would say that CH4 is not binary compound because that’s methane’s formula
Let's imagine that we were going to start a company that produces
spectroscopes to sell to general chemistry students. To ensure that all the
spectroscopes created the same calibration line and equation we need to be sure it was always the same we should compare all these with the same standard spectroscope while manufacturing
hope this helps
because the model makes the concepts easier to understand
Explanation:
A model would be useful because they make concepts easier to understand.
Models are abstractions of the real world.
- Scientists use model to make concepts easier to understand
- Models take parts of the real world and simulates them.
- They help remove the ambiguity that might be associated with studying the real world.
Learn more:
Model brainly.com/question/5012266
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Atomic mass of Potassium = Mass of 1 atom of Potassium = 39.1 amu
Then
Mass of 6.02 x 1023 atoms of potassium = 39.1 x 6.02 x 1023 amu
=
We already know that
1 mole = 6.02 x 1023 atoms
Also
Number of mole = mass in grams/ atomic mass
Then
Mass in gram = Number of mole x atomic mass
= (39.1 x 6.02 x 1023)/(6.02 x 1023)
= 39.1 g
The correct option among all the options that are given in the question is the third option or option "B".