Which substance has the lowest [H+] concentration but is still considered an acid?
Answer:
(A) - Milk
Explanation:
Acids cannot go below the 7 mark, and milk is the last one right before 7
According to the mole concept, there are 1.8074 moles in 77.1 g of chlorine.
Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.
It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.
It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Number of moles is calculated as, mass/molar mass
Substituting values in formula gives, number of moles=77.1/70.90=1.8074
Thus, there are 1.8074 moles in 77.1 g of Cl₂.
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1.) is electromagnetic energy
2.) is an electron
3.) has zero charge
4.) is emitted from the nucleus
5.) has a +2 charge
6.)has a -1 charge
Answer: 2, 4, 6
Explanation: A beta particle is a high energy electron, emitted from the radioactive disintegration of an atomic nucleus. It has a -1 charge.
then b is 4
2a=3b since a=6
2x6=3b
12=3b
b=12/3
b=4
Answer:
b=4
Explanation:
2a=3b
2a=2*6
2*6=12
2a=12
12=3b
12/3=4
b=4