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
4vir4ik [10]
3 years ago
9

What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest whole-number coeffici

ents? C3H6O2(l) + O2(g) → CO2(g) + H2O(l)A) 5 B) 7 C) 1 D) 3
Chemistry
1 answer:
rodikova [14]3 years ago
7 0

Answer:

Option (B) 7

Explanation:

C3H6O2(l) + O2(g) → CO2(g) + H2O(l)

To know the coefficient of O2 in the above equation, let us balance the equation.

The above equation can be balance as follow:

C3H6O2(l) + O2(g) → CO2(g) + H2O(l)

There are 3 atoms of C on the left side and 1 atom on the right side. It can be balance by putting 3 in front of CO2 as shown below:

C3H6O2(l) + O2(g) → 3CO2(g) + H2O(l)

There are 6 atoms of H on the left side and 2 atoms on the right side. It can be balance by putting 3 in front of H2O as shown below:

C3H6O2(l) + O2(g) → 3CO2(g) + 3H2O(l)

There are a total of 4 atoms of O on the left side and a total of 9 atoms on the right side. It can be balance by putting 7/2 in front of O2 as show below:

C3H6O2(l) + 7/2O2(g) → 3CO2(g) + 3H2O(l)

Multiply through by 2

2C3H6O2(l) + 7O2(g) → 6CO2(g) + 6H2O(l)

Now, the equation is balanced.

From the balanced equation above, the coefficient of O2 is 7.

You might be interested in
Which shell is the outermost for oxygen?<br> A 192<br> B. 292<br> C. 252P<br> D. 2P
nadya68 [22]
Typical day of a new day in my house with my phone in my car so I’m not going hard I don’t know how much it was
4 0
2 years ago
What is the hydrogen ion concentration of a substance with a pH of 4.5?​
FrozenT [24]

Answer:

The hydrogen ion concentration of the substance is 3.16*10⁻⁵ M

Explanation:

pH is a parameter used to measure the degree of acidity or alkalinity of a substance. The pH is calculated as the negative logarithm (base 10) of the concentration of hydronium ions [H₃O⁺] or hydrogen ions [H⁺].

pH= - log [H₃O⁺]= - log [H⁺]

Values ​​on the pH scale range from 0 to 14, where pH equal to 7 is neutral, below 7 is acidic and above 7 is basic.

In this case, pH= 4.5

So:

4.5= - log [H⁺]

Solving:

[ H⁺]= 10⁻⁴ ⁵

[H⁺]= 3.16*10⁻⁵ M

The hydrogen ion concentration of the substance is 3.16*10⁻⁵ M

7 0
2 years ago
What processes take place within all cells in order to maintain homeostasis?
NISA [10]

Answer:

Explanation: obtain and use energy, make new cells, exchange materials, eliminate wastes

6 0
2 years ago
Read 2 more answers
Which orbitals from a pi bond?
QveST [7]

Answer:

B. The s orbital and two p orbitals

Explanation:

8 0
3 years ago
For the chemical reaction
kakasveta [241]

Answer:

Mass = 199.21 g

Explanation:

Given data:

Moles of HCl = 3.59 mol

Mass of CaCl₂ = ?

Solution:

Chemical equation:

2HCl + Ca(OH)₂  →     CaCl₂ + 2H₂O

we will compare the moles of HCl with  CaCl₂ from balanced chemical equation:

                HCl             :           CaCl₂

                   2              :              1

                 3.59           :             1/2×3.59 = 1.795  

3.59 moles of HCl will produced 1.795 moles of CaCl₂.

Mass of CaCl₂.

Mass = number of moles × molar mass

Mass = 1.795 mol  × 110.98 g/mol

Mass = 199.21 g

3 0
3 years ago
Other questions:
  • A mineral is a naturally occurring solid with a regular, repeating structure. Please select the best answer from the choices pro
    13·2 answers
  • A mixture of argon and krypton gases, in a 5.38 L flask at 67 °C, contains 6.18 grams of argon and 9.66 grams of krypton. The pa
    13·1 answer
  • List four observation that suggest a chemical change is occuring
    11·1 answer
  • Which statement is true for a reversible reaction?
    5·1 answer
  • How many atoms of hydrogen are in hydroxide molecule?
    10·1 answer
  • How much ice (in grams) would have to melt to lower the temperature of 353 mL of water from 26 ∘C to 6 ∘C? (Assume the density o
    9·1 answer
  • What is the freezing point of an aqueous solution that has 25.00 g of calcium iodide dissolved in 1250 g of water?
    13·1 answer
  • Keep your work area neal and
    15·1 answer
  • How does an object become electrically charged?will give brainliest
    12·1 answer
  • in a given homologous series of hydrocarbons, the boiling point generally increases as the size of the molecules increases. the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!