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
attashe74 [19]
2 years ago
13

HELP THIS IS DUE IN A FEW MINUTES

Chemistry
2 answers:
Arlecino [84]2 years ago
3 0
If matters mix and it doesn’t make a material it’s called physical change. But, if maters are mixed and they do make a material it’s called chemical change.
boyakko [2]2 years ago
3 0
Ummmmmmmmmmm,mmm,mmm
You might be interested in
Water and minerals move up the xylem because of a vacuum created by _____.
Galina-37 [17]

Answer:

The right answer is B) evaporation

Explanation:

Transpiration occurs at the leaf surface which is the loss of water due to the evaporation. This phenomenon works as trigger of water and mineral movement above to the xylem. Due to the evaporation of water at the leaf, negative pressure is created at the surface of leaf. Tension is produced which results in the pull of water from roots up to the xylem vessels.  

4 0
3 years ago
Substances that dissolve in water nd give up OH-ions are considered what
just olya [345]

Your answer would be an Arrhenius base

Hope this helps

7 0
2 years ago
Compared to other stars we observe, the Sun appears bigger and brighter because:
Kipish [7]

Answer:

Compared to other stars we observe, the Sun appears bigger and brighter because it is much closer to earth.

Objects closer to earth appear to be much bigger and brighter.

Let me know if this helps!

3 0
3 years ago
Read 2 more answers
How can you get unconscious
sesenic [268]
When sudden changes occurs in the body. lack of blood flow in the brain
6 0
3 years ago
How does a chemist count the number of particles in a given number of moles of a substance?
jolli1 [7]
The chemist the count the number of particles (Atoms, Molecules or Formula Unit) in a given number of moles of a substance by using following relationship.

                              Moles  =  # of Particles / 6.022 × 10²³

Or,

                              # of Particles  =  Moles × 6.022 × 10²³

So, from above relation it is found that 1 mole of any substance contains exactly 6.022 × 10²³ particles. Greater the number of moles greater will be the number of particles.
8 0
3 years ago
Other questions:
  • Describe how the law of conservation of energy is demonstrated in this laboratory activity.
    9·1 answer
  • Two elements in the second transition series (y through cd ) have three unpaired electrons in their 3+ ions. what elements fit t
    5·2 answers
  • The energy needed to create bonds between two hydrogen molecules is measured in units called __________
    8·1 answer
  • What is the most mass of (NH4)2CO3 (H=1,C=12,N=14,O=16
    13·1 answer
  • WHAT IS A ELECTROLYTE?THIS IS FOR MY PRESENTATION
    14·2 answers
  • Carbon monoxide and chlorine combine in an equilibrium reaction to produce the highly toxic product, phosgene (COCl2 ) CO(g) Cl2
    5·1 answer
  • Why doesn't light get absorbed
    10·1 answer
  • Silver sulfate dissociates into silver ions and sulfate ions:
    11·1 answer
  • At a certain temperature, O2 molecules move at an average velocity of 480 m/s. At that same temperature what would be the veloci
    15·1 answer
  • Region where electrons are located within an atom, what is it??
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!