1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lukranit [14]
3 years ago
11

Select each of the reactions and observe the reactants taking part in the reactions. Suppose you are carrying out each of these

reactions starting with five moles of each reactant. Observe that some reactants are in excess whereas some reactants limit the amount of products formed.
Classify each of the reactants as a limiting reactant or an excess reactant for a reaction starting with five moles of each reactant.

A. H2 in formation of water
B. O2 in formation of water
C. CH4 in combustion of methane
D. N2 in formation of ammonia
E. H2 in formation of ammonia
F. O2 in combustion of methane
Chemistry
1 answer:
polet [3.4K]3 years ago
3 0

Answer:

A. In the formation of water, H2 is the limiting reactant and O2 is the excess reactant.

B. In the Combustion of methane (CH4), O2 is the limiting reactant and CH4 is the excess reactant.

C. In the formation of ammonia (NH3), H2 is the limiting reactant and N2 is the excess reactant.

Explanation:

The question suggests that each reactant has 5 moles.

A. Formation of water. Water is produced when H2 and O2 combine together according to the balanced equation below:

2H2 + O2 —> 2H2O

From the balanced equation above,

2 moles of H2 reacted with 1 mole of O2.

Therefore, 5 moles of H2 will react with = 5/2 = 2.5 moles of O2.

From the above calculations, we can see that there are left over for O2 as only 2.5 moles reacted out of the 5 moles that was given.

Therefore, H2 is the limiting reactant and O2 is the excess reactant.

B. Combustion of methane. Combustion is simply a reaction in the presence of oxygen. The balance equation for the Combustion of methane (CH4) is given below:

CH4 + 2O2 —> CO2 + 2H2O

From the balanced equation above,

1 mole of CH4 reacted with 2 moles of O2.

Therefore, 5 moles of CH4 will react with = 5 x 2 = 10 moles of O2.

From the calculations made above, we can see that it requires higher amount of O2 to react with 5 moles CH4. Therefore, O2 is the limiting reactant and CH4 is the excess reactant.

C. Formation of ammonia.

Ammonia is obtained when N2 and H2 combine according to the balanced equation below:

N2 + 3H2 —> 2NH3

From the balanced equation above,

1 mole of N2 reacted with 3 moles of H2.

Therefore, 5 moles of N2 will react with = 5 x 3 = 15 moles of H2.

From the calculations made above, a higher amount of H2 is required to react with 5 moles of N2. Therefore, H2 is the limiting reactant and N2 is the excess reactant.

You might be interested in
Rank the ions in each set in order of decreasing size, and explain your ranking:
Valentin [98]

Answer:

a) Se²⁻> S²⁻ > O²

b) Te²⁻ > I- >Cs+

c)  Cs+ > Ba²⁺ > Sr²⁺

Explanation:

(a) Se²⁻, S²⁻, O²⁻

In general, ionic radius decreases with increasing positive charge.

As the charge on the ion becomes more positive, there are fewer electrons.

The ion has a smaller radius. In general, ionic radius increases with increasing negative charge.

For ions of the same charge (e.g. in the same group) the size increases as we go down a group in the periodic table

Se²⁻> S²⁻ > O²

(b) Te²⁻, Cs⁺, I⁻

Te²⁻ > I- >Cs+

Te2- hast the biggest size, because of the double negative charge.

Cs+ has the smallest size since it has the most positive charge, compared to Te2- and I-.

(c) Sr²⁺, Ba²⁺, Cs⁺

Cs+ > Ba²⁺ > Sr²⁺

Cs+ has the biggest size, because its more downward (compared to Sr2+) and more to the left (compared) ot Ba2+.

Sr2+ has the smallest size because it's more upwords (compared to Cs+ and Ba2+)

5 0
3 years ago
A substance that forms a vapor is generally in what physical state at room temperature?liquid or solidsolidliquidgas
Evgesh-ka [11]

The answer is liquid or solid.

That is a substance that forms a vapor is generally in liquid or solid physical state.

The substance that is in liquid or solid physical state, forms vapor.

When heated solid and liquid can be converted into vapor so the answer is solid or liquid is the physical state that forms vapors.

6 0
3 years ago
How can molecules with polar bonds be nonpolar?
Alexandra [31]
A molecule can<span> possess </span>polar bonds<span> and still be </span>non polar. If the polar bonds<span> are evenly (or symmetrically) distributed, the </span>bond<span> dipoles cancel and </span>do<span> not create a molecular dipole.</span>
5 0
3 years ago
When objects of two different temperature are in contact, what happens?
Sonja [21]
Answer: C. the warmer object transfers heat energy to the cooler side
5 0
1 year ago
Read 2 more answers
____Na + ____Cl2 ---&gt; ____NaCl
IrinaVladis [17]
Here is the answer of the given question

6 0
3 years ago
Read 2 more answers
Other questions:
  • Enter the maximum number of electrons in each type of sublevel (s, p, d, and f, respectively)
    7·1 answer
  • Sulphuric acid is a strong acid but acetic acid is weak acid why​
    10·1 answer
  • How many moles of nickel (Ni) atoms are in 125 g Ni?
    8·2 answers
  • Arrange the substances in the table from the MOST to the LEAST ordered particle arrangement
    11·2 answers
  • How many protons does Mg²₊ have?
    13·1 answer
  • What anions generally form precipitates? What are the exceptions?
    9·2 answers
  • what type of forces either interatomic or intermolecular forces prevents ice cubes from adopting the shape of their container​
    6·1 answer
  • Name 3 sources of carbohydrates for the production of an alcoholic drink
    15·1 answer
  • Why is it important to predict consequences when decision-making?
    10·1 answer
  • Help please!!!!!! ASAP
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!