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adell [148]
2 years ago
12

When heated, magnesium combines readily with excess oxygen in the air to produce magnesium oxide, as shown in the following unba

lanced equation.
Mg (s) + O2 (g) → MgO (s) + heat

What two types of reactions could this chemical equation be classified as?
Chemistry
1 answer:
aev [14]2 years ago
4 0

<u>Answer:</u> The given chemical reaction can be classified as synthesis and exothermic.

<u>Explanation:</u>

A synthesis reaction is defined as the reaction where two small chemical species combine in their elemental state to form a single large chemical species.

Exothermic reactions are defined as the reactions in which heat is released by the reaction. The heat is written on the product side of the reaction.

For the given chemical reaction:

Mg(s)+O_2(g)\rightarrow MgO(s)+\text{heat}

The above chemical reaction is a type of synthesis and exothermic as two substances in their elemental state are combining. Also, heat is getting released in the reaction.

Hence, the given chemical reaction can be classified as synthesis and exothermic.

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Write a balanced net ionic equation for the reaction of aqueous solutions of baking soda (NaHCO3) and acetic acid.(A) HCO3–(aq)
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<u>Answer:</u> The correct answer is Option C.

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Net ionic equation of any reaction does not include any spectator ions.

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The chemical equation for the reaction of sodium bicarbonate and acetic acid is given as:

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Ionic form of the above equation follows:

Na^+(aq.)+HCO_3^-(aq.)+CH_3COO^-(aq.)+H^+(aq.)\rightarrow CH_3COO^-(aq.)+Na^+(aq.)+H_2O(l)+CO_2(g)

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HCO_3^-(aq.)+H^+(aq.)\rightarrow CO_2(g)+H_2O(l)

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