The answer to your question is : no.of moles of Si = 43/atomic mass of Si = 43/28.1 = 1.53
according to reaction 3 moles of Si gives 1 mole of Si3N4
so 1.53 mole of Si will give 1.53/3 = 0.51 mole of Si3N4
molar mass of Si3N4 = 140.28 g/mole
it means that 1 mole of Si3N4 = 140.28 g
so 0.51 mole of Si3N4 = 0.51 X 140.28 = 71.543 g
Answer: False
Explanation: just took on edge
The answer is: Kaopectane.
Kaopectate is a medication for the treatment of mild diarrhea.
First, kaolinite was used as the adsorbent in this medication. Kaolinite is aa layered silicate mineral, with the chemical composition Al₂Si₂O₅(OH)₄.
Now, bismuth subsalicylate is used as the active absorbent in Kaopectate.
Bismuth subsalicylate has the empirical chemical formula of C₇H₅BiO₄.
Answer is: d. Mg3N2.
Mg₃N₂ is magnesium nitride.
Nitrogen (nonmetal) in this chemical compound has oxidation number -3 and magnesium (metal) has oxidation number +2.
Smallest common multiple for 3 and 2 is 6.
number of nitrogen atoms = 6 ÷ 3.
number of nitrogen atoms = 2, there are two nitrogen atoms.
number of magnesium atoms: 6 ÷ 2.
number of magnesium atoms = 3.
I would say C but I’m not entirely sure
