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
WINSTONCH [101]
3 years ago
11

Name the gases that mostly compose the atmosphere.

Chemistry
1 answer:
Gemiola [76]3 years ago
3 0

Explanation:

Oxygen and Nitrogen. is the correct pair.

You might be interested in
The specific heat of aluminum is 0.214 cal/g.oC. Determine the energy, in calories, necessary to raise the temperature of a 55.5
Natasha2012 [34]
For this problem, we use the formula for sensible heat which is written below:

Q= mCpΔT
where Q is the energy
Cp is the specific heat capacity
ΔT is the temperature difference

Q = (55.5 g)(<span>0.214 cal/g</span>·°C)(48.6°C- 23°C)
<em>Q = 304.05 cal</em>
4 0
3 years ago
Help me is a critic acid a solid or a liquid??​
Musya8 [376]

Answer:

See below

Explanation:

It is neither, at least not at room temperature.

Citric acid exists as a power at room temperature, but can be crystallized from cold water. This can be considered it's " solid state, " but as I mentioned before this acid is a powder. Take a look at the attachment below. This is a citric acid present as a crystal;

7 0
3 years ago
Which of the following is NOT a heterogenous mixture:
ANTONII [103]

Answer:Vinegar

Explanation:

4 0
3 years ago
Atoms share one or more pairs of electrons.<br><br> Options:<br> Ionic Bond or Covalent Bond?
garri49 [273]

Answer:

covalent bonds

Explanation:

ionic transfer of e^- ions formed (charges)

ionic=non-metal+ metal

ex: F+Ca

covalent sharing e^- no true charges

covalent= non-metal+ non-metal

ex: F+P

( my notes)

5 0
2 years ago
What is the arrhenius definition of a base?
igor_vitrenko [27]
The Arrhenius definition of acid-base reactions, which was devised by Svante Arrhenius, is a development of the hydrogen theory of acids. ... An Arrhenius base is a substance that dissociates in water to form hydroxide (OH -) ions. In other words, a base increases the concentration of OH - ions in an aqueous solution.
4 0
3 years ago
Read 2 more answers
Other questions:
  • How many miles are there in 20g of KClO3 (k=39 Cl=35.5 O=16)​
    9·1 answer
  • As more bulbs are connected in series in a circuit, what happens to the brightness with which each glows?
    9·2 answers
  • Which element can expand its valence shell to accommodate more than eight electrons? which element can expand its valence shell
    14·2 answers
  • An unknown gas is contained in a sealed container. Over time, the gas is gradually cooled until it becomes a solid. Determine wh
    8·2 answers
  • A large pile of marbles weigh 592.45g. 15 marbles weigh 43.35 g. How
    6·1 answer
  • What is the pH of a 1.7 × 10⁻⁴ M HClO₄ solution?
    14·1 answer
  • The base that will NOT combine with 2-deoxyribose to form a nucleic acid is _____.
    12·1 answer
  • What statement best explains how life functions a unicellular organism are carried out?​
    10·2 answers
  • Please Need help asap
    14·1 answer
  • What type of energy does a person experience when jumping on a trampoline?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!