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bixtya [17]
4 years ago
11

How many cheeks do you have?

Chemistry
2 answers:
soldier1979 [14.2K]4 years ago
8 0
Answer: 4

Well 4 or 5.

2 on your face.

2 on your Bottom.

And well... 5 If you use your imagination.




belka [17]4 years ago
4 0
Realyyy,,,,,,,,,,,      4 ig

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How many grams are in 88.1 moles of magnesium
creativ13 [48]
Molar Mass of Magnesium ( Mg) = 24 g/mol

1 mole Mg ------------ 24 g
88.1 mole ------------- x

x = 88 .1 * 24

x = 2114.4 g of Mg

hope this helps!.
5 0
3 years ago
Name physical properties
Paraphin [41]

Answer:

<u>Some examples of physical properties are: </u>

color (intensive)

density (intensive)

volume (extensive)

mass (extensive)

boiling point (intensive): the temperature at which a substance boils.

melting point (intensive): the temperature at which a substance melts.

Explanation:

Hope this helped! <3

8 0
3 years ago
What did rutherfords gold foil experiment help him conclude
Naya [18.7K]
It allowed him to realize that the mass of an atom is concentrated at its center because the atoms mostly went through the foil but some were deflected. He also realized that an atom probably wasn't just empty space and scattered electron and it had a positive center. 
6 0
3 years ago
Read 2 more answers
SO42- 2NO2 H2OH2SO3 2NO3- In the above redox reaction, using oxidation numbers to identify the element oxidized, the element red
nignag [31]

Answer :  In the redox reaction,

Nitrogen element is oxidized and sulfur element is reduced.

NO_2 act as reducing agent and SO_4^{2-} act as an oxidizing agent.

Explanation :

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.

Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.

The given chemical reaction is,

SO_4^{2-}+2NO_2+H_2O\rightarrow H_2SO_3+2NO_3^-

This reaction is a redox reaction in which nitrogen shows oxidation reaction because the oxidation state of 'N' changes from (+4) to (+5) and sulfur shows reduction reaction because the oxidation state of 'S' changes from (+6) to (+4).

In the redox reaction NO_2 act as reducing agent and SO_4^{2-} act as an oxidizing agent.

6 0
4 years ago
Holly has an unknown substance in a beaker. she wants to determine the relative ph of the unknown substance. she places a piece
AURORKA [14]

Blue litmus paper turns red in the presence of an acid. Therefore, it can be assumed that the substance in the beaker is an acid.

Acids have a pH level of less than 7. Consequently, it can be assumed that the substance has a pH level less than 7.

6 0
4 years ago
Read 2 more answers
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