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3 years ago

If D+2 would react with E-1, what do you predict the formula to be. A) DE B)D2E C)DE2 D) D2E2

Chemistry

2 answers:

allochka39001 [22]3 years ago

5 0

All you need to do the cross the charges and put it as suffixes.

D+2 + E-1 ----> DE2

answer is C

Elena-2011 [213]3 years ago

3 0

Answer: C) $DE_2$

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 D is having an oxidation state of +2 called as $D^{2+}$ cation and E $E^{-}$ is an anion with oxidation state of -1. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral $DE_2$ .

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

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a, d and e. are true.

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3 years ago

If 5.85 moles of CaCO3 are used in an experiment, how many moles of carbon dioxide are created? (Be sure to include units in you

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Answer:

5.85 moles of carbon dioxide are created.

Explanation:

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By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

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