What is the molar mass of magnesium nitrate? Round to the nearest 0.01, and
include correct units AND substance
formula.

ANYONE CAN HELP ME WITH QUESTION PLEASE ?

148.31 Grams per mol

Explanation: It has been a long time since I took chemistry.

I believe you add up all the elements molar mass.

magnesium nitrate is Mg(NO3)2 so you add

MG  24.30

N 14.01 * 2 = 28.01

O 16.00 * 6 = 96.00

total is 148.31 grams per mol

I hope this helps.  

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.