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
marysya [2.9K]
3 years ago
10

Q82. Liquid petrol does not ignite spontaneously when exposed to the air because

Chemistry
1 answer:
sashaice [31]3 years ago
7 0
Liquid petrol does not ignite spontaneously when exposed to the air because there is not enough molecules that contains energy to reach the activation energy. As a result, the reaction cannot proceed and a supply of energy should be added for the reaction to occur.
You might be interested in
At the beach, Kim noticed that breezes blew from the ocean to the land during the day and from the land to the ocean at night. W
Cloud [144]
Sea breeze the other person is a hundred percent write
5 0
3 years ago
Read 2 more answers
Pls help The white light of the sun is a mixture of all the colors.
Anettt [7]

false the black light is

7 0
3 years ago
Read 2 more answers
The total concentration of ions in a 0.75 M solution of HCl is
EastWind [94]
<h3>Answer:</h3>

The total concentration of ions in a 0.75 M solution of HCl is 1.5 M

That is; 0.75 M H⁺ and 0.75 M Cl⁻

<h3>Explanation:</h3>
  • Concentration or molarity is the number of moles of a compound or an ion contained in one liter of solution. It is measured in moles per liter (M).
  • The concentration of ions making a compound is determined by the ratio of moles of the compound and the constituents ions.
  • For instance, HCl dissociates to give H⁺ and Cl⁻

       HCl(aq) → H⁺(aq) + Cl⁻(aq)

  • Therefore, since the mole ratio between HCl and the constituent ions H⁺ and Cl⁻ is 1:1, then 0.75 M of HCl dissociates to give 0.75 M H⁺ and 0.75 m Cl⁻
  • Hence the total concentration of ions in a 0.75 M solution of HCl is 1.5 M (0.75 M H⁺ and 0.75 M Cl⁻)
4 0
3 years ago
Experiment ideas I could win a lot of money from school
AleksAgata [21]

I am not all understood but for the school to earn money you can:

make  

--a raffle

--lotto

-- yard sale  

-- class photo  

-- origami for sale or something

-- buffet or food sale (example all Friday ice cream sale, 2 livre ice cream)

6 0
3 years ago
A student reacted NiS2 (MM = 122.83 g/mol) with O2 (MM=32.00 g/mol) to make SO2 (MM=64.07 g/mol) according to this balanced equa
Ilya [14]

Answer:

Percentage yield = 0.49 × 10² %

Explanation:

Given data:

Actual yield of SO₂ = 4.309 ×10² g

Theoretical yield of SO₂ = 8.78 ×10² g

Percentage yield = ?

Solution:

Chemical equation:

2NiS₂ + 5O₂ → 2NiO + 4SO₂

Percentage yield:

Percentage yield = actual yield / theoretical yield × 100

Percentage yield = 4.309 ×10² g  / 8.78 ×10² g  × 100

Percentage yield = 0.491 × 100

Percentage yield = 49.1%

In scientific notation:

Percentage yield = 0.49 × 10² %

5 0
3 years ago
Other questions:
  • How is wind deflation different from wind abrasion??
    6·1 answer
  • Which of the following solutions will have the lowest freezing point?
    9·1 answer
  • What does this look like? Can someone write out the Stoichiometry starting with 50 grams of carbon (use balanced equation)
    12·1 answer
  • Why does the graph through the point (0,0)
    10·1 answer
  • Gaseous water molecules condense when they _______. Liquid water molecules evaporate when they _______.
    15·1 answer
  • Pb(OH)2 + _HCI → __ H2O + _<br>PbCl2​
    6·1 answer
  • PLEASE HELP ME DUE TOMORROW IT REALLY HELPS IF YOU HELP ME THANK YOU SO MUCH IS YOU DO HELP ME!!
    14·1 answer
  • What happens during a chemical change??
    5·2 answers
  • Which statement is false?
    15·1 answer
  • True or false, physical properties are distinguished by the way something looks, taste, smell, and feels.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!