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
inessss [21]
2 years ago
13

NEED HELP! thank you!

Chemistry
1 answer:
Zanzabum2 years ago
7 0

Answer:

This is a physical change.

Explanation:

As long as the identity of the substance has not changed, and the element is present before and after, it is a physical change! (Ex: ice melting)

You might be interested in
Which describes Lithium chloride
Rasek [7]

Answer:

Lithium chloride is a white solid hygroscopic soluble in water.

8 0
2 years ago
If the elastic modulus of cobalt (co) is 200 gpa, and the elastic modulus of tungsten carbide (wc) is 700 gpa, calculate the upp
Dmitry_Shevchenko [17]
To determine the upper bond
Ec(u) = EmVm + EpVp
Em is the elastic modulus of cobalt.
E₁ is the elastic modulus of the particulate
Vm is the volume fraction of cobalt
Vp is the volume fraction of particulate
substitute
Ec(u) = 200 (Vm) + 700 (Vp)
To determine the lower bound
Ec (l) = EmEp/VmEp+ VpEm
Substitute
Ec (l) = 200(700)/Vm(700) + Vp (200)
Ec (l) = 1400/7Vm+2Vp
7 0
3 years ago
One week, Isahhhfsshgddfx gzjgsusitdjgv and the new year and I have to go to the
NeTakaya

Answer:

man idek

Explanation:

have no clue

8 0
2 years ago
What is the meaning of barren in this sentence?
JulsSmile [24]

Having little vegetation

Dry and lifeless

Completely empty

5 0
3 years ago
Read 2 more answers
Is there such thing as a pure mixture?
prisoha [69]
Pure substances are further broken down into elements and compounds. Mixture are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule.
3 0
3 years ago
Read 2 more answers
Other questions:
  • A chemical reaction in which an acid and a base react to produce salt and water is called a neutralization reaction. In the neut
    6·1 answer
  • The molarity of sulfuric acid in a fully charged car battery is 5.2 m. when fully discharged the molarity is 4.8m. a 2.00ml samp
    7·2 answers
  • A solution has the same or different properties to the solute and solvent making it up
    9·1 answer
  • C. Graphite is used as lubricant.​
    7·1 answer
  • [CM.01] Which states of matter appear only in the hydrosphere?
    15·2 answers
  • Which forces of attraction do you think are stronger, the attractions that are broken or the new attractions that are formed? Ex
    6·1 answer
  • All electromagnetic waves travel at the same speed in a vacuum, usually referred to as the speed of light. This speed is approxi
    15·1 answer
  • What is the Wavelength of the frequency of 1.54 Hz
    13·1 answer
  • What is the independent variable?<br> (For science)
    5·1 answer
  • Which variable is measured each time the independent variable changes
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!