When Calcium Ca

question 10

Multiple Choice

When Calcium Ca. bonds with oxygen, it gives up two electrons. What is the charge of the Ca ion in this compound?

• A) - 2
• B) - 1
• C) +2
• D) +1

---

Definitions:

Hereditary Trait

A hereditary trait is a characteristic that is passed from parents to offspring through genes, such as eye color, blood type, or certain inherited conditions.

Presbyopia

A common age-related condition where the eye loses its ability to focus on nearby objects, often leading to the need for reading glasses.

Hyperopia

A vision condition where distant objects are seen more clearly than near objects because the eyeball is too short or the lens cannot become round enough.

Farsightedness

A common vision condition where distant objects can be seen clearly, but close ones do not come into proper focus.