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iragen [17]
3 years ago
13

How are parentheses used in chemical formulas

Physics
2 answers:
BARSIC [14]3 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]3 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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Answer:

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Explanation:

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where,

r = radial distance = ?

G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²

M = Mass of Planet = 3.52 x 10¹³ kg

v = tangential speed = 0.034 m/s

Therefore,

r = (6.67 x 10⁻¹¹ N.m²/kg²)(3.52 x 10¹³ kg)/(0.034 m/s)²

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Answer:

OT

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3 years ago
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