Answer:
<u>○</u><u>MONOPOLY</u><u> </u><u>○</u>
○1▪︎Monopoly is the type of imperfect competition where a seller or producer captures the majority of market share due to lack of substitutes or competitors.○
○2▪︎Nil competition exists as only one seller present in the market.○
<u>○</u><u>MONOPOLISTIC</u><u> </u><u>○</u>
○1▪︎Monopolistic competition is a type of imperfect competition where many sellers try to capture market share by differentiating their products.○
○2▪︎Very high competition exists as there are many sellers.○
Answer:
50.00 g of NO
Explanation:
Remember that the balanced chemical reaction equation is indispensable in solving any question that has to do with stoichiometry. Hence the first step in solving the problem is noting down the balanced chemical reaction equation.
2NO(g) + O2 (g)→ 2NO2(g)
Now we try to find out the reactant in excess. The reactant in excess gives the greater mass of product.
For O2;
From the balanced reaction equation;
32 g of O2 yields 92g of NO2
16.00g of O2 will yield 16.00×92/32 = 46g of NO2
For NO;
30g of NO yields 92g of NO2
80.00 g of NO yields 80.00 × 92/30 = 245.33 g of NO2
Hence NO is the reactant in excess.
If 1 mole of O2 reacts with 2 moles of NO2 according to the balanced reaction equation
Then 32 g of O2 reacts with 60g of NO according to the balanced reaction equation
16.00 g of O2 reacts with 16.00 × 60 /32 = 30 g of NO
Hence mass of excess reactant used in the reaction = total mass of NO- mass of NO reacted= 80.00g -30.00g = 50.00 g of NO
Hence the mass of excess reactant used in the reaction is 50.00 g of NO
Answer: D. All of the above describe a mole
Explanation:
Mole is the unit for amount of substance.<em> </em>It is used for describing large number of particles.
According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number of particles.
For example: 1 mole of Na atom will weigh 23 grams and contains atoms.
Thus all the above describes a mole.
It allows scientists to visualize the molecule they are working with more vividly.
It also allows them to see the ratio of atoms It contains which further allows
scientist to find the proportions of chemicals to mix together to maximize the
efficiency of a chemical reaction.