Which Reactant Is Present in Excess If 10

question 164

Multiple Choice

Which reactant is present in excess if 10.0 g of CaO react with 3.0 mol of H₂O? CaO + H₂O → Ca(OH) ₂

• A) Ca(OH)2
• B) CaO
• C) H₂O
• D) None of the above, the amounts exactly balance.

---

Definitions:

Range

The difference between the highest and lowest values in a dataset, indicating the dataset's spread.

Ages

The lengths of time that individuals or entities have existed, typically measured in years.

Volunteers

Individuals who offer services or undertake tasks without expecting compensation or material gain, usually to benefit others or a community.

Sample Variance

A statistic that measures the dispersion of a sample set of data points around their sample mean.