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
dimaraw [331]
3 years ago
10

Which process will change a substance chemically? A. boiling B. melting C. burning D. evaporating

Chemistry
1 answer:
marshall27 [118]3 years ago
4 0
The answer is B. boiling
You might be interested in
Phoebe removes frozen vegetables from the freezer to make herself a stir-fry. She’s in a bit of a hurry, so she immerses the pla
alexira [117]
I think the answer would be D
4 0
3 years ago
Read 2 more answers
A container holds 500. ML of CO2 at 20.° C and 742 torr. What will be the volume of the CO2 if the pressure is increased to 795
Ludmilka [50]

Answer: 466.67 ml

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}   (At constant temperature and number of moles)

Thus

P_1V_1=P_2V_2  [according to Boyle's law]

742torr\times 500ml=795torr\times V_2

V_2=466.67ml


4 0
3 years ago
Read 2 more answers
Question 2 (Multiple Choice Worth 2 points)
faust18 [17]

Answer:

\pi r²  x h

Explanation:

A can is cylindrical in nature. Using the formula of the volume of the can, we can find this unknown volume.

The volume of cylinder is given as:

   Volume of a cylinder  = Area x height

  Volume of  a cylinder = \pi r²  x h

Therefore density of the can;

      Density  = \frac{mass}{volume}

6 0
3 years ago
This kind of bond is formed when an atom with low electronegativity donates electrons to an
Butoxors [25]

Answer:

Ionic Bond

Explanation:

The atom with the higher electronegativity wants to fill its valence electron shell (meaning it wants 8 electrons in this shell). The atom with lower electronegativity will want to empty <em>or donate </em>an electron so that it can have an empty valence shell.

3 0
3 years ago
Old thermometers contained very small amounts of mercury. The mercury in the photo has a melting point of -38.8 degrees Celsius.
Nikolay [14]

Answer:

••It's melting point equals -38.8 degrees Celsius because it is mercury. |••

Explanation:

This one makes the most sense out of the answers.

7 0
3 years ago
Other questions:
  • 1. Is this equation balanced? Explain your answer. Na + Cl2 → NaCl ?
    10·2 answers
  • Calculate the m/m% of casein in the milk sample:​
    9·1 answer
  • Explain the difference between passive transport and active transport
    5·1 answer
  • A 43.63 gram sample of a hydrate of caseo4 was heated thoroughly in a porcelain crucible, until its weight remained constant. af
    14·1 answer
  • 4. It takes a car one minute to go from rest
    7·1 answer
  • The density of silver (Ag) is 10.5 g/cm^3. How do you find the mass of Ag that occupies 965 cm^3 of space?
    15·1 answer
  • Please help does anybody know how to calculate the molar mass of a compound?
    5·2 answers
  • HELP!! PLEASE 10+ points!
    10·1 answer
  • An open nanometer is filled with mercury and connected to a container of hydrogen gas. The mercury level is 57mm higher in the a
    9·1 answer
  • The ideal gas law is represented by PV=nRT. As volume is held constant and the temperature increases, how would the pressure be
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!