What Mass of Arsenic (As)in Grams Contains the Same Number

question 22

Multiple Choice

What mass of arsenic (As) in grams contains the same number of atoms as 39.95 g of argon (Ar) ?

• A)33.0
• B)74.92
• C)4.16
• D)149.84

---

Definitions:

Lithosphere

The hard external layer of Earth, made up of the crust and the top section of the mantle.

Driving Forces

Factors or energies that lead to changes in a physical system or environment, often initiating or influencing processes.

Resisting Forces

Forces that oppose motion or movement, including friction, air resistance, and tension, which work against the direction of motion.

Plate Tectonics

A theory in which the lithosphere is divided into a number of mostly rigid plates that move relative to one another, causing tectonic activity along these boundaries.