If the Following Ions Ca²⁺, Cl^-, Na⁺ and CO₃^2- Are

question 13

Multiple Choice

If the following ions Ca²⁺, Cl^-, Na⁺ and CO₃^2- are placed in a test tube, the precipitate formed is ________.

• A)CaCO₃
• B)NaCl
• C)CaCl₂
• D)no precipitate will be formed

---

Definitions:

Targeted Population

A group of individuals sharing one or several characteristics that a study is designed to analyze.

Standard Error

A statistical measure that estimates the accuracy with which a sample distribution represents a population by using the standard deviation.

Sampling Error

The difference between a population parameter and a sample statistic that results from selecting a sample.

Expected Value

The predicted average outcome of a random variable, computed as the weighted average of all possible values.