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jasenka [17]
3 years ago
9

Both the physical and chemical properites of a substance can change when a substance undergoes a chemical reaction. When a log i

s burned, a chemical reaction occurs. The log is transformed into ash, water vapor, and carbon dioxide. The log is flammable, or able to be burned, in its original form. Once the log is burned, however, the ashes that are produced are no longer flammable. The volume of the log also changes when it changes into ash and gas. Volume is a _______ property. Flammability is a _______ property. A. chemical; physical B. physical; physical C. physical; chemical urgent TIME LIMIT 84PTS
Chemistry
2 answers:
ElenaW [278]3 years ago
6 0
Answer is option C...
e-lub [12.9K]3 years ago
3 0

The answer to your question is C. Physical; Chemical

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mafiozo [28]

Answer:

13ml

Explanation:

  1. to prepare dis solution first you need a volumetric flask of 100ml calibrated .
  2. using dilution formulae u will need 13ml from the stock
  3. measure 13ml of the 5M stock of the 500ml
  4. then drop it into the 100ml calibrated flask
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3 years ago
The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m) to its volume (v).
vovangra [49]

Answer:

Density is an intensive property

Explanation:

The intensive properties don´t depend on mass or size, if you have a liter of water, this litter have a density equal 1000 kg/m^3. If zo have 250 liters of water, the density is 1000 kg/m^3 too.

The density does not change with the addition or substraction of matter.

I hope I have been clear.

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3 years ago
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Svet_ta [14]

Answer:

that is all I know sorry hope that may help you :)

Explanation:

Indicator is a substance which shows different colors in acidic and basic medium. Indicators can be natural (derived from natural sources) or artificial ( man-made) for example :

*Litmus is an indicator. Acid turns blue litmus into red while base turns red litmus into blue

* Turmeric solution does not show change in color (remains yellow) in acidic solution and turns red in basic solution.

8 0
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Psychologist work with "neurotics" more<br> than psychotics.<br> A-True<br> B-False
dexar [7]
It would be FALSE!!!
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When a paper towel absorbs water, is it a physical or chemical change?
Nonamiya [84]

Answer:

It is a physical change.

Explanation:

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