Question

question 1,

• diamond ring (c)
• table sugar (c₁₂h₂₂o₁₁)
• helium balloon (he)
• rust on a metal tool (fe₂o₃, iron oxide)

which of these substances are elements, and which are compounds? classify each one accordingly.
a. diamond ring: element, table sugar: compound, helium balloon: element, rust: compound
b. diamond ring: compound, table sugar: element, helium balloon: compound, rust: element
c. diamond ring: element, table sugar: element, helium balloon: element, rust: compound
d. diamond ring: compound, table sugar: compound, helium balloon: element, rust: element

Explanation:

1. Diamond ring: Diamond is pure carbon (C), an element.
2. Table sugar (sucrose): Has formula \(C_{12}H_{22}O_{11}\), a compound (multiple elements).
3. Helium balloon: Helium (He) is an element.
4. Rust (\(Fe_2O_3\)): Contains Fe and O, a compound.

Only Option A matches these classifications.

Answer:

A. Diamond ring: Element, Table sugar: Compound, Helium balloon: Element, Rust: Compound