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sukhopar [10]
2 years ago
15

When CaCO3(s) decomposes into CaO +CO2, the reaction is called?

Chemistry
1 answer:
liberstina [14]2 years ago
5 0

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

This reaction is called decomposition reaction, furthermore it can be said to be decomposition of limestone.

The balanced chemical equation for the reaction is ~

\qquad \sf  \dashrightarrow \: CaCO_3 = CaO + CO_2

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Which ion would represent the ion of an element from Group 2A?
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Answer:

E²⁺

Explanation:

The group two contain alkaline earth metals.

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Beryllium, Magnesium, calcium, strontium, barium and radium.

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They lose two valance electrons to complete the octet.

When they lose the two valance electrons they form cation X²⁺.

They react with halogens and form salt such as

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Mg²⁺  Cl²⁻₂

The oxidation state of halogens are -1, while the elements of group two A shows +2 that's why two atoms of halogen are combine with one atom of alkaline earth metals and make the compound overall neutral.

All the alkaline earth metals have similar properties.

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2 years ago
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Answer:

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4 0
2 years ago
Is food coloring in water a mixture or pure substance
kkurt [141]

Answer:

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8 0
3 years ago
Read 2 more answers
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Ierofanga [76]

Answer:

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Explanation:

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So we can say that:

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8 0
2 years ago
1
Alex787 [66]

Answer:

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Explanation:

4 0
3 years ago
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