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3 years ago

When oxygen and calcium form an ionic bond, what is the formula? o2ca2 oca ca2o2 cao

Chemistry

2 answers:

DIA [1.3K]3 years ago

6 0

Calcium has a 2+ charge and Oxygen has a 2- charge.

To get the formula you have to balance the charges so that it's neutral. In this case a 2- and 2+ charge cancel each other out making the formula CaO.

noname [10]3 years ago

4 0

Answer: $CaO$

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here calcium is having an oxidation state of +2 called as $Ca^{2+}$ cation and oxide $O^{2-}$ is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral $CaO$ .

The cations and anions being oppositely charged attract each other through strong coloumbic forces and form an ionic bond.

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<u>Answer:</u> The balanced chemical equation is written below.

<u>Explanation:</u>

Double displacement reaction is defined as the reaction in which exchange of ions takes place.

$AB+CD\rightarrow CB+AD$

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Aqueous sulfuric acid will react with solid sodium hydroxide to produce aqueous sodium sulfate and liquid water . Suppose 0.98 g

cestrela7 [59]

Answer:

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Explanation:

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So, amount of sodium sulfate to be formed will depend upon moles of sodium hydroxide.

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4 years ago

Read 2 more answers

Please help I need a answer to both

irga5000 [103]

Hi , I’m really sorry because I just have the first question... so here it is :

So it is 0.52 mol .

Have a nice day .

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