AlCl3+3KNO3—>3KCl+Al(NO3)3 1) How many miles of aluminum nitrates could be produced when 3.5 miles of aluminum chloride reacts in excess potassium nitrate?
2) How many particles of potassium chloride could be produced using 245 grams of aluminum chloride?
3) When 12.0 grams of aluminum chloride reacts with 24.0 grams of potassium nitrate, how many grams of aluminum nitrate can be produced?

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.  

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

the answer is d.) potassium

i believe the answer is three water molecules