A scientist completes a thermal decomposition reaction. 12.25g of calcium carbonate, CaCO3, is heated and forms calcium oxide, Cao, and carbon dioxide, CO2.
a. Write a balanced chemical equation to demonstrate this reaction. Include state symbols.

b. Calculate the number of moles of calcium carbonate that is thermally decomposed in this
reaction.
Ok

Moles of calcium carbonate : 0.1225

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

CaCO₃(s) → CaO(s) + CO₂(g)

mass of CaCO₃ : 12.25 g

mol CaCO₃(MW=100 g/mol) :

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.