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
Alina [70]
2 years ago
13

The energy levels of an atom are occupied by A.electrons B.protons C.neutrons D.ions

Chemistry
1 answer:
Vedmedyk [2.9K]2 years ago
5 0

Answer:

A: electrons

Explanation:

You might be interested in
Please hurry!
-Dominant- [34]

Answer:

c. liquid

Explanation:

because the are not very close if the said very closely packed together it would have been a solid

7 0
3 years ago
2. Which energy source is considered a non-renewable resource?
Keith_Richards [23]

Answer:

The answer is D

Explanation:

Although natural processes continually form fossil fuels, such fuels are generally classified as non-renewable resources because they take millions of years to form and the known viable reserves are being depleted much faster than new ones are being made. ... The use of fossil fuels raises serious environmental concerns.

BRAINLIEST PLZ

8 0
3 years ago
Read 2 more answers
The air in a 2 L balloon at 0.998 atm and 34.0 °C. What will be its pressure if it is brought to a higher altitude where it now
Phantasy [73]

Answer: 0.529 atm

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 0.998 atm

P_2 = final pressure of gas = ?

V_1 = initial volume of gas = 2 L

V_2 = final volume of gas = 3.5 L

T_1 = initial temperature of gas = 34.0^oC=273+34.0=307.0K

T_2 = final temperature of gas = 12.0^oC=273+12.0=285.0K

Now put all the given values in the above equation, we get:

\frac{0.998\times 2}{307.0K}=\frac{P_2\times 3.5}{285.0K}

P_2=0.529atm

Thus the pressure if it is brought to a higher altitude where it now occupies 3.5 L and is at 12.0 °C is 0.529 atm

4 0
3 years ago
This is correct !! I promise ​
LuckyWell [14K]

Answer:

ok if its correct

Explanation:

7 0
2 years ago
A scientist places 10 ml of water in a test tube and heat it with flaming burner for 2 minutes. The liquid boils and escapes as
aliina [53]

Answer:

physical change

Explanation:

The evaporation of water is a physical change. When water evaporates, it changes from the liquid state to the gas state, but it is still water; it has not changed into any other substance. All changes of state are physical changes.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is considered applied research?
    15·1 answer
  • ]Which of the following describes the arrangement of particles in plasma?The particles are ionized and move independently of eac
    10·2 answers
  • Sodium, an alkali metal, and chlorine, a halogen, are both in Period 3 of the periodic table. Which element has
    10·1 answer
  • A mineral forms from water at the edge of a lake.
    14·2 answers
  • X-rays with a wavelength of 8.82 nm. Calculate the frequency of the x rays
    7·1 answer
  • How many moles are present in 25.0 grams of potassium permanganate, KMnO,? ​
    15·1 answer
  • What does it mean when there is a physical change?
    13·1 answer
  • Please help It’s due today
    5·2 answers
  • What isotope is the product of the alpha (*2He) nuclear decay of Radon-222 (222U)?
    15·1 answer
  • Fill in the blanks to complete the table
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!