Answer: C) The net force on the brick is 0 N, and the brick remains at rest.
Isotopes have same atomic number but different atomic mass number.
Hence option B is correct.
Hope this helps you!
The molecular mass of a 10g compound that has 30.066 × 10²³ atoms is 2.00g/mol.
<h3>How to calculate molecular mass?</h3>
The molecular mass of a substance can be calculated by dividing the mass of the substance by the number of moles.
molecular mass = mass ÷ no of moles
However, the number of moles of the substance must first be calculated by dividing the number of atoms by Avogadro's number.
no of moles = 30.066 × 10²³ ÷ 6.02 × 10²³
no of moles = 4.99moles
molecular mass = 10g ÷ 4.99 moles = 2.00 g/mol
Therefore, the molecular mass of a 10g compound that has 30.066 × 10²³ atoms is 2.00g/mol.
Learn more about molecular mass at: brainly.com/question/14122402
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Answer:
Option A
They are located near the equator
Explanation:
From the diagram, we can observe that all the rain forest zones occur near the equator.
This is because on an annual basis, the equator receives the highest concentration of solar radiation in the whole Earth. This implies that the rate of evaporation of water from the water bodies present is high, and consequently, the amount of rainfall is high also. This abundant sunshine and high rainfall leads to the growth of the tropical rain forests at those regions
