The atoms of a substance can be determined by dividing the given mass of the substance by the molar mass. This results to moles of the substance. Then we multiply by the Avogadro's number. In this case, we divide 1 g by 58. 69 g/ mol and multiply by 6.022 x10^23 atoms / mole. The answer is 1.03 x10^22 atoms
They are called the noble gasesbecause they are very unreactive. The highest occupied energy levels (outermost shells) of their atoms are full: helium atoms have two electrons in their outer energy level. atoms of the other noble gases have eight electrons in their outer energy level.
Answer:
they keep the plastic bottles and make a Christmas decoration from it to use
48 square unit
Explanation:
Given parameters:
Surface area of sphere = 4πr²
value of π = 3
radius of sphere = 2
Unknown:
Surface area of sphere = ?
Solution:
To solve we input the given parameters in the formula for the surface area of the sphere.
S. A = 4πr²
r is the radius of the sphere
π is a constant whose value is 3
S.A = 4 x 3 x 2² = 48 square unit
learn more:
Volume of a sphere brainly.com/question/5055270
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Answer:
A transition to renewable energy and to replace fossil fuels would take care of economically producing fine greens. Also, a transition to energy conservation and efficient energy use would help in this process.
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