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Anastaziya [24]
3 years ago
6

What is the chemical formula of a compound that is composed of ions ca2+ and br-

Physics
2 answers:
evablogger [386]3 years ago
5 0

Answer: Calcium Bromide

Explanation:

  • The valency of Calcium (Ca) is +2 and valency of Bromine (Br) is -1.
  • When these two chemically combine with each other, Calcium Bromide (CaBr_2) is formed.
  • In order to form a neutral molecule, 2 Br^- combines with one Ca^{2+}.
  • So, the resulting chemical formula would be CaBr_2.
Ghella [55]3 years ago
4 0
The chemical formula of a compound that is composed of ions Ca+2 and Br-1, is Ca(Br)2.
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The three stages of a train route took 1 hour ,2 hours ,and 4 hours . The first two stages were 80km and 200km of the train aver
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So

\frac{ \text{speed at stage 1} + \text{speed at stage 2} + \text{speed at stage 3}}{3} = 0

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we kow that average is ,

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x = 1200- 720

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