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KonstantinChe [14]
3 years ago
11

What is the primary difference between a chemical and physical change?

Chemistry
1 answer:
Sphinxa [80]3 years ago
6 0

Answer:

In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.

Explanation:

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4. A galvanic cell is formed when two metals are immersed in solu- tions differing in concentration 1 when two different metals
Vanyuwa [196]

A galvanic cell is formed when two metals are immersed in solutions differing in concentration, when two different metals are immersed.

<h3><u>What is a </u><u>Galvanic</u><u> </u><u>cell</u><u> ?</u></h3>
  • In order to provide a pathway for the flow of electrons along that wire, the galvanic cell makes use of the ability to split the flow of electrons during the oxidation and reduction processes.
  • It forces a half-reaction and connects each to the other with a wire.
  • A galvanic cell is an electrochemical device that converts chemical redox reaction energy into electrical energy.
  • Electrically, it has a potential of 1.1 V. Oxidation takes place at the anode, which is a negative plate in galvanic cells. It is a positive plate where the reduction happens.
  • An electrochemical device called a galvanic cell transforms chemical energy's free energy into electrical energy. A photogalvanic cell produces species that are photochemically reactive.

To view more questions about galvanic cell, refer to:

brainly.com/question/13031093

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5 0
2 years ago
On what basis can mixtures be classified as solutions suspensions or colloids
FinnZ [79.3K]

Answer:

A mixture is classified as a solution when there is an homogeneous mixture of the two or more substances involved in a given medium.

A mixture is classified as a suspension when there is a heterogeneous mixture of undissolved particles in a given medium.

A mixture is classified as a colloid (false solution) when the individual solute Particles are larger than the particles of true solution, but they are not large enough to be seen by the naked eye. The solutes can scatter light rays.

7 0
4 years ago
When calculating molar mass , can you round it or it has to be specific ?
Vlada [557]
For many (but not all) problems, you can simply round the atomic weights and the molar mass to the nearest 0.1 g/mole. HOWEVER, make sure that you use at least as many significant figures in your molar mass as the measurement with the fewest significant figures. In other words, never let your molar mass be the measured value that determines how many signficant figures to use in your answer!
3 0
4 years ago
Richard made the following table that highlights all the different constellations, or patterns of stars, he observed in each sea
Scilla [17]
I’m a leo purrr and I’m pretty sure it’s number 4
6 0
3 years ago
Read 2 more answers
Help science worth 50 points
monitta

Answer:

I think this is like a game in which you need dice.

Explanation:

To fill out the second page, you need to complete the roll/go-to chart.

8 0
4 years ago
Read 2 more answers
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