Atoms of which of the following elements are largest? A: Na OOOO
1 answer:
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Answer:
The answer is
<h2>4.54 g/cm³</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass of rock = 454 g
volume = 100 cm³
The density of the rock is
We have the final answer as
<h3>4.54 g/cm³</h3>Hope this helps you
Answer:
2.64 × J
Explanation:
I think you should mark it a physics question instead but anyway.
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The Planck equation should be applied:
E = hv , while E is energy of proton; h is Planck constant; and v is frequency.
E = 6.6 × × 4 ×
= 6.6 × 4 ×
= 2.64 × J