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iragen [17]
4 years ago
13

How are parentheses used in chemical formulas

Physics
2 answers:
BARSIC [14]4 years ago
8 0
In a chemical compound, parenthesis are used to distinguish the number of polyatomic ions from the number of atoms. Such as in the compound calcium nitrate, it is written as Ca(NO_{3} ) _{2}. This means there are two nitrate ions for every one calcium ion.<span>
</span>
Zarrin [17]4 years ago
3 0
<span>it is meant to distinguish the number of polyatomic ions from the number of atoms in a given polyatomic ion. an example is Ca(NO3)2</span>
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A loop of area 0.250 m^2 is in a uniform 0.020 0-T magnetic field. If the flux through the loop is 3.83 × 10-3T· m2, what angle
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Answer:

40.0⁰

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