Answer:
Explanation:
Energy of electron in n = 4 state
= - 13.6/4² =- 0.85 eV
So energy needed to extract it from atom = .85 eV.
The answer is A) the sand turns to liquid
Acceleration is maximum. <span>Velocity is decreasing. Acceleration is increasing</span>
Answer:
A balanced equation
Explanation:
when atoms of various elements or compounds react, they do this in mole ratio. It is a law to always balance the number of elements of each element on the reactant side to the corresponding elements on the product side of the equation. This is done by the introduction of coefficients.
Answer:
Explanation:
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