Calcium Carbonate Is Used to Form Exoskeletons $\mu$ G

question 68

Multiple Choice

Calcium carbonate is used to form exoskeletons. It has a solubility-product constant of 5.0 *10^-9. What is the mass of calcium ions dissolved in 1.0 L of a saturated solution of calcium carbonate?

• A) 101 ng
• B) 2.8 mg
• C) 1.4 mg
• D) 201 ng
• E) 16 \(\mu\)g

---

Definitions:

Static Planning Budget

A budget based on a fixed level of activity, without adjusting for any variations in actual performance, useful for initial planning.

Flexible Budget

A budget that adjusts or varies with changes in the volume of activity, revenue, or other factors influencing budgeting.

Static Budget

A financial plan that does not change or adjust over the period, regardless of any changes in business activity levels.

Flexible Budget

A budget that adjusts to changes in activity or production levels, allowing for more accurate budgeting.