ICSE Class 9 Answered
Mark the following statements whether true or false :
1.All elements have a unique valency.
2.Phosphate is a divalent ion.
3.Chemical equations are balanced to satisfy the law of conservation of mass.
Asked by hemanginivyas92.9spicertl | 14 Aug, 2020, 01:05: PM
Expert Answer
1. False. All elements have a unique atomic number.
2. False. Phosphate(PO43-) is a trivalent ion.
3. True. Chemical equations are balanced to satisfy the law of conservation of mass.
Answered by Ramandeep | 14 Aug, 2020, 08:16: PM
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