Answer:
Amount of Listerine can be prepared = 16.73 (Approx)
Explanation:
Given:
Listerine formula contains = 26.9% alcohol
Amount of alcohol = 4.5 L
Find:
Amount of Listerine can be prepared
Computation:
Amount of Listerine can be prepared = (Amount of alcohol) / (Listerine formula contains)
Amount of Listerine can be prepared = 4.5 / 26.9%
Amount of Listerine can be prepared = 16.73 (Approx)
Answer: The missing coefficient is 2.
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
As in the products, there are 2 atoms of sodium, thus there will be 2 atoms of of sodium in the reactant as well. This will balance the number of hydrogen and oxygen atoms as well.
Thus the missing coefficient is 2.
Answer:
Hi
Each electron in an atom is characterized by four numbers that arise from the resolution of Schrödinger's equations. These numbers are called quantum numbers. Each energy level corresponds to a main known quantum number, which is represented by the letter n. This number gives an idea of the location of an energy level with respect to the nucleus. The higher n, the mayor will be the energy of that level and the farther away from the nucleus is removed.
In each energy level there may be sub-levels. Each of them is specified by another quantum number called secondary, specified with the letter l. The value of this quantum number can vary from zero to n-1. For example, in the first energy level, the quantum number can only take a value that is zero, while in the second level, it can take a value between zero or one. Then, it can be said that the values of the quantum number n indicate the size of the orbital, that is, its proximity to the nucleus; and the values of the quantum number l variables the orbital:
• If l = 0, the orbital is of type s.
• If l = 1, the orbitals are of type p.
• If l = 2, the orbitals are of type d.
• If l = 3, the orbitals are of type f.
Explanation:
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Answer:
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