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zhenek [66]
3 years ago
9

Which are exmaples of chemical change?

Chemistry
1 answer:
kifflom [539]3 years ago
7 0

Answer:

cold butter melted when heated, lighting a match, baking cookies,

Explanation:

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Which option is a physical property of matter?
Elan Coil [88]

Answer:

boiling point is the physial property of matter

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3 years ago
Which family on the periodic table is least likely to enter into chemical reactions? 1 2 17 18
vekshin1
Elements present in group 18 are known as noble gases. The outermost shell of these elements are completely filled.

18 is the answer
6 0
3 years ago
Read 2 more answers
A TLC plate showed 2 spots with Rf values of 0.25 and 0.26. The plate was removed from the developing chamber, the residual solv
Katena32 [7]

Answer:

See explanation

Explanation:

TLC is a chromatographic method in which the solute is spotted on a plate and the plate is placed in an air tight chamber containing a solvent. The solvent is maintained below the level of the spot. The capillary movement of the solvent through the plate achieves the required separation.

If two spots have Rf values of 0.25 and 0.26 respectively and then the plate was removed from the developing chamber, subsequently, the residual solvent was allowed to evaporate from the plate, and then the plate was returned to the developing chamber.

It will be observed after the second development is complete that the new Rf values will be 0.50 and 0.52 respectively. It will just be as though the second chromatogram picked up from where the first chromatogram stopped.

4 0
2 years ago
Sponges, Cnidarians, Flatworms, and Roundworms are all in which group of animals?
Westkost [7]
These animals are all invertebrates
3 0
3 years ago
Which landforms are created where cirques meet?
dezoksy [38]

Aretes and horns

Explanation:

Aretes and horns are the landforms that are created where cirques meet. These landforms are products of glacier erosion in most temperate and polar regions.

  • Cirques are common products of alpine glacier erosion.
  • They arise in form of bowl shaped hollows on the side of a mountain.
  • These hollows joins to form a U-shaped valley called Aretes and unique pointed arcs known as horns.

Learn more:

factors that affects erosion brainly.com/question/2473244

#learnwithBrainly

6 0
3 years ago
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