How Many Helium Atoms Are Present in 3

question 5

Multiple Choice

How many helium atoms are present in 3.0 × 10 ^{− 2} moles of He(g) ?

• A)5.6 × 10²¹
• B)1.8 × 10²²
• C)4.5 × 10²¹
• D)1.2 × 10 ²⁵

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Definitions:

Childhood Asthma

A respiratory condition characterized by episodes of wheezing, coughing, and shortness of breath in children, often triggered by allergies or infections.

United States

A country consisting of 50 states, located primarily in North America, known for its economic and cultural influence globally.

Asthma Rate

The prevalence or incidence of asthma within a particular population or demographic group, often expressed as a percentage or rate.

Concrete Operational

A stage in Piaget's theory of cognitive development (roughly ages 7-11) where children gain the ability to think logically about concrete events.