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Sophie [7]
3 years ago
6

In the chemical formula H2O , which description explains what the 2 represents?

Chemistry
2 answers:
alukav5142 [94]3 years ago
8 0

the number of hydrogen atoms

Alja [10]3 years ago
3 0

Answer:

In the chemical formula H2O , which description explains what the 2 represents?

Explanation:

the number of hydrogen atoms

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How many atoms of hydrogen are present in 7.63 g of ammonia? please help me ??
GarryVolchara [31]
The atoms  of  hydrogen  that are  present  in  7.63 g  of ammonia(NH3)

find  the  moles  of NH3 =mass/molar mass
 7.63 g/ 17 g/mol = 0.449  moles

since there  is  3 atoms of H  in NH3 the  moles of  H = 0.449 x 3 = 1.347 moles

by  use  of  1 mole = 6.02 x10^23  atoms
what  about  1.347  moles

= 1.347  moles/1   moles  x 6.02 x10^23 atoms = 8.11 x10^23  atoms of Hydrogen
3 0
3 years ago
Which element consists of positive ions immersed in a “sea” of mobile electrons
worty [1.4K]

Answer:

Explanation:

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4 0
2 years ago
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abruzzese [7]
C. HNO₃(aq) + KOH(aq) → KNO₃(aq) + H₂O
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The polymerization of amino acids produces:
Delicious77 [7]

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Polymerization, in chemistry, is the chemical combination of monomeric units to form a polymer. Polymers are large molecules made up of smaller units called monomers. Amino acids are the monomeric units of proteins i.e. A protein is made up of of many amino acids joined together.

Therefore, the chemical combination of amino acids will form a peptide bond between the carbon atom of the acid group and nitrogen atom of the amine group in the structure of the amino acids. This is done by the loss of a water molecule. The continuous repetition of this polymerization process will form a chain called polypeptide, which is the PROTEIN.

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Temperature is the measure of average potential energy particles of a substance. <br> TRUE or FALSE
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Explanation:

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