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
Hunter-Best [27]
3 years ago
10

Dry unpolluted air is usually considered to contain about :-

Chemistry
1 answer:
wariber [46]3 years ago
6 0
Whats the question?!?! You never put the question.
You might be interested in
Is Carbon combustible? Why or why not?
valkas [14]
Carbon is not combustible because when it combines with oxygen its energy increases thus it doesnt combust. 
3 0
3 years ago
What is an intensive property? *
Dennis_Churaev [7]

Answer:A property that changes if the amount of substance changes

Explanation:

This is the answer

8 0
3 years ago
Which population increases the amount of soil nutrients available to plants?
Hitman42 [59]
The population tha increases the amount of soil nutrients available to plants is D) bees that help spread pollen from one plant to another.
5 0
3 years ago
Read 2 more answers
Would the water in a pond or the water in a full bathtub have more thermal energy? Explain why.
Mekhanik [1.2K]
Thermal energy is defined as the total kinetic energy of all particles in an object. Even though the cup of water has a higher temperature, the bathtub has more thermal energy because it contains much more mass of water compared to the cup.
5 0
2 years ago
What type of substance reacts with limestone (CaCO3) and produces carbon dioxide gas?
Anestetic [448]
Acids react with calcium carbonate and more specifically carbonate to form carbon dioxide. An acid will give protons to the carbonate anion to produce carbonic acid which then decomposes into carbon dioxide and water. I hope this helps. Let me know if anything is unclear.
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is not true about most combustion reactions?
    13·1 answer
  • Which of the following is an example of an endothermic process? (2 points) Gasoline burning in a combustion engine A chocolate b
    8·2 answers
  • When two substances are mixed and light is produced is it a chemical or physical change?
    8·2 answers
  • The overall goal of technology is to do
    8·1 answer
  • A carbon-carbon triple bond is found in a molecule of
    15·2 answers
  • Which solution has the lowest pH? A. 1.0 M HNO2 B. 1.0 M CH3COOH C. 1.0 M HCOOH D. 1.0 M HNO3 E. 1.0 M HPO4–
    14·2 answers
  • The solubility of AgNO3 at 10° and 20°C are 170g and 222g per 100g H2O. What is the sign of change of heat of solution for AgNO3
    5·1 answer
  • A chlorine (CI) atom has 7 valence electrons. Which of the following would be the most likely way for a chlorine atom to become
    9·1 answer
  • Question is in picture! Due in 30 minutes!
    15·1 answer
  • Plz help, asap, no links and don't put answer if you don't know. Explain also!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!