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DaniilM [7]
2 years ago
13

Which of the following are functions of the nose?

Chemistry
2 answers:
aleksley [76]2 years ago
5 0
The second option would be the correct answer.
MArishka [77]2 years ago
3 0

Answer:

The answer should be I and III

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2. How is the layer of iridium used to tell the relative age of different rock strata and fossils?
Fantom [35]

Answer and Explanation:deposition has been occurring on earth for a very long time. as time goes by, more deposits form layers on the earth, including the remains of animals and plants that would later become fossils, burying the previous deposits in another layer of newer deposits. therefore it follows that layers which are found deeper are older than those found in layers near the surface....

hope it helps u..

4 0
3 years ago
How many molecules are in CH4
Aleonysh [2.5K]

Answer:

The number of molecules in CH4, also known as methane, is merely 0.85 * 6.02210 * 10 ^ 23 (Avogadro's Number). This amounts to <em><u>approximately 5.1 * 10 ^ 23 molecules</u></em><u> with the correct number of significant figures</u>.

6 0
3 years ago
Which is a postulate of the kinetic-molecular theory?
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An increase in the number of gas particles in the container increases the frequency of collisions with the walls and therefore the pressure of the gas. The last postulate of the kinetic molecular theory states that the average kinetic energy of a gas particle depends only on the temperature of the gas.
8 0
3 years ago
Read 2 more answers
An unknown compound was found to be soluble in concentrated sulfuric acid; however, the 2,4-DNP, chromic acid, and potassium per
Alecsey [184]

Explanation:

2,4-DNP is negative: aldehyde and ketone absent

Chromic acid is negative: alcohol absent.

KMnO4 test negative: alkene absent

The only positive result is for Fe(OH)2.

Nitro group-containing compounds react with ferrous hydroxide to give amine and ferric hydroxide red ppt. Hence given compound contains the nitro group (-NO2).

5 0
3 years ago
What happens to the molecules of water when the water changes from liquid to gas?.
ICE Princess25 [194]

Answer: Molecules only speed up when given energy, such as heating. When you heat water enough, it will boil and turn into water vapor. So, therefore, if water's molecules speed up, it will go into the gas phase

Explanation: As that liquid water is further heated, it evaporates and becomes a gas—water vapor. These changes between states (melting, freezing, and evaporating) happen because as the temperature either increases or decreases, the molecules in a substance begin to speed up or slow down.

Hope this helps! ^w^

3 0
2 years ago
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