The phosphorous cycle does not include an atmospheric component because phosphorous does not cycle through the atmosphere. In comparison, important processes of the carbon and nitrogen cycle occur in the atmosphere
Nitrogenous base. These are Adenine (A), Glycine (G), Thymine (T) or Uracil (U), and Cytosine (C).
A always pairs T (or U in RNA)
G always pairs with C
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In case of heptane (C7H16) the following structural isomers are possible
shown in figure
a. 1-sec-butylpropane : this is actually 3-methyl hexane
b. 4-methylhexane : this is actually 3-methylhexane
c. 2-ethylpentane : this is actually 3-methyl hexane
d. 1-ethyl-1-methylbutane: 3-methylhexane
e. 3-methylhexane: correct IUPAC
f. 4-ethylpentane: This is actually 3-methylhexane
Hence all represent single isomer
Answer:
Period
Explanation:
horizontal is a period and verticle is a group
It’s mass because the law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed.