Fireworks, KNO3 Give only the names of the elements alphabetically, separating them with commas.
2 answers:
Answer : The question is to write the elements alphabetically and seperating them with commas.
So in this case for your question of Fireworks , K
,
The answer will be K, N, O.
You have to just differentiate the elements and write them according to the alphabetical order.
So in this case for your question of Fireworks , K
The answer will be K, N, O.
You have to just differentiate the elements and write them according to the alphabetical order.
<u>Answer:</u> The elements present are potassium, nitrogen and oxygen.
<u>Explanation:</u>
Elements are defined as the substances in which same type of atoms are present. <u>For Example:</u> Sodium, Chlorine etc.
The chemical formula of the compound used in fireworks is
The chemical name for the compound is potassium nitrate.
This compound is formed by the combination of three elements. In 1 mole of potassium nitrate, 1 mole of potassium atom, 1 mole of nitrogen atom and 3 moles of oxygen atoms are present.
Hence, the elements present are potassium, nitrogen and oxygen.
You might be interested in
a. mass of iron = 69.92 g
b. percent yield = 93%
<h3>Further eplanation </h3>Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated
General formula:
Percent yield = (Actual yield / theoretical yield )x 100%
An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients
a.
Reaction
Fe₂O₃+3CO⇒2Fe+3CO₂
MW Fe₂O₃ : 159.69 g/mol
mol Fe₂O₃
mol Fe₂O₃ : mol Fe = 1 : 2
mol Fe :
mass of Fe(Ar=55.845 g/mol) :
b.
actual yield = 65 g
theoretical yield = 69.92 g
percent yield :