How many ounces is 68 g? O A. 0.42 oz O B. 28.3 oz O C. 4.8 oz O D. 2.4 oz
1 answer:
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Answer : The density of the block is estimated to be, .
Explanation :
Density of the water,
As we know that,
Buoyant force =
where,
g = gravitational acceleration
volume of the block = v
density of the block =
Weight of the Block = Buoyant force exerted by water
Thus, the density of the block is estimated to be, .
When the number of protons and electrons are equal, that means the element is neutral. So, to know the element, find the element with an atomic number of 10. That would be Neon. Next, solve the mass number.
Mass number = protons +neutrons = 10+11 = 21
Thus, the expression should be written as shown in the attached picture.
Mass number = protons +neutrons = 10+11 = 21
Thus, the expression should be written as shown in the attached picture.