Achemistry student combines 32 grams of one chemical and an unknown amount of another chemical in a closed system. a chemical reaction occurs and the mass of the products is 114 grams. how much of the unknown chemical was used in the reaction?

The reaction used 82 g of the unknown chemical.

The word equation is  

Chemical 1 + Chemical 2 → Products  

     32 g    +         x g        →     114 g  

The Law of Conservation of Mass tells us the total mass of the reactants must equal the mass of the products. Then  

32 g + x g = 114 g  

x = 114 – 32 = 82

The mass of Chemical 2 was 82 g.  

sry but any answer choices

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.