Answer:
V₂ = 236.84 mL
Explanation:
The relation between pressure and volume is inverse.
We can write it as follows :
We have,
P₁ = 360 torrs, V₁ = 750 mL, P₂ = 1.5 atm = 1140 torr.
So,
So, the new volume of the gas is 236.84 mL.
Answer : The correct option is, (B) 2, 3 and 6.
Explanation :
Combustion reaction : It is a type of reaction where a hydrocarbon react with an oxygen molecule to give carbon dioxide, water as a product.
In general,
For example : Ethane react with oxygen to give carbon dioxide and water.
In the given list, 
is a reactant and 
are the products.
Therefore, the correct answer is, (B) 2, 3, and 6
Answer:
"c" is the element with the most negative electron affinity.
Explanation:
We can obtain the following information from the electron configuration:
Period: Is the level in which the differential electron is in.
Group: Is the sum of all electrons in the last level.
Knowing their ubication in the periodic table, we can classify them as metals, nonmetals or noble gases.
a. 5s² P: 5 G: IIA (2) Metal
b. 5s²5p² P: 5 G: 2 + 2 = IVA (14) Nonmetal
c. 5s²5p⁵ P: 5 G: 2 + 5 = VIIA (17) Nonmetal
d. 5s²5p⁶ P: 5 G: 2 + 6 = VIIIA (18) Noble gas
Noble metals have a low tendency to gain electrons so their electron affinity is neglectable. For elements in the same period, the electron affinity gets more negative from left to right. Therefore, "c" is the element with the most negative electron affinity.
The correct answer is this one: "the number of electrons that are involved in the bonding of the molecule." Lewis structures help us understand the number of electrons that are involved in the bonding of the molecule. It also helps us know the shape of the molecule, its reactivity and its interaction with other molecules.
The number of electrons in total can be predicted by looking at the atomic number because the amount of protons and electrons are the same in a neutral atom. To predict the number of atoms on its valence shell, identify what group the element of the atom is in, and the group number corresponds with the number of electrons on the valence shell.
