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
Fynjy0 [20]
3 years ago
8

How are physical and chemical changes different

Chemistry
2 answers:
Wittaler [7]3 years ago
3 0

Answer:

physic

Explanation:

physical chnages are chnages to the appearance

chemical chnages are chnages like

color temperature chnaging fromna gas to a liquid etc

mariarad [96]3 years ago
3 0

Answer:

Explanation:

Physical changes do not change the properties of the initial substance. Physical changes are temporary. For eg if you boil water, it turns into vapor. It's chemical composition is still H2O but now its just in gas form instead of liquid but overtime that gas will condensate into water. SO physical changes are reversible most of the times.

Chemical changes change the properties of initial substance. Like burning wood, you can't really reverse this reaction because you can't go from coal to wood, its permanent change. So chemical changes are permanent changes. Like souring milk, acid-base reactions, rotting banana etc.

You might be interested in
Q4. What are the different ways in which human being use rocks ?​
Ghella [55]

Answer:

To hit someone on the head

Explanation:

self protection

4 0
2 years ago
Read 2 more answers
A student observes that water in a pot on a burner becomes hotter explain how energy is conserved in the situation
Daniel [21]

  • The water in the pot becomes hotter as a result of heat transfer.

  • <em>Energy can be transferred from a region to another , but there will still the same overall amount of energy</em> ( energy conservation)

  • When a pot containing water  is  placed on the stove and  heat is applied with the burner, there is a flow of heat from the burner to the water.

  • Heat will be transferred from the burner to the pot, then there will be transferred of heat from the pot to the water, the molecules there in the water  will be energized as a result of the heat transfer until the boiling point  is  reached.

  • Energy transfer can take place in three form, this could be conduction, radiation or convention.

  • Convention which is a cyclical process is the one that occurs in fluids only so as a result of convection , the water at the bottom will be heated and the molecules start moving and it will rise till it get to the water at the top of the pot.

<em>Therefore, the water is heated as a result of heat transfer.</em>

<em />

Learn more at : brainly.com/question/17858145?referrer=searchResults

8 0
3 years ago
What occurs in electroplating?
mixas84 [53]
I think it’s the first one. Electroplating means you put on a layer of metal on something.
5 0
3 years ago
view each ecosystem at your table. Think about the resources that are necessary in order for each to be successful. List all of
TiliK225 [7]

Answer:

Organisms compete for the resources they need to which are survive- air, water, food, and space.

7 0
2 years ago
Read 2 more answers
What is water oxidation number
-Dominant- [34]

Answer:

The formula for water is . The oxidation number of hydrogen is +1. Since there are two of them, the hydrogen atoms contribute to a charge of +2. The water molecule is neutral; therefore, the oxygen must have an oxidation number of to balance the charge.

6 0
3 years ago
Other questions:
  • NaCl<br> Quantity of element
    13·2 answers
  • The molar mass of the compound was found to be 30.069 g/mol. what is the molecular formula? express your answer as a chemical fo
    10·1 answer
  • What is one observation you can make aboit venus​
    8·1 answer
  • What is the ph of a 7.5*10^-3 m H+ solution
    14·2 answers
  • Which particles can be stopped by human skin? ) alpha and beta particles only alpha particles alpha and gamma particles beta and
    15·2 answers
  • When H2SO4 is added to PbI2, a precipitate of PbSO4 forms. The PbSO4 is then filtered from the solution, dried, and weighed. If
    6·1 answer
  • What is the degree of oxidation of a simple substance​
    11·2 answers
  • If two people attempt the same maneuver, what determines the amount of force that each is required to exert?
    6·1 answer
  • Find the odd one out of --retina,cochlea,ciliary muscles,cornea​
    8·1 answer
  • HELP 20 POINTS
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!