Luokat: Kaikki - substances - chemical - bonding - elements

jonka Jiao Wenbo (Woodgrovess) 2 vuotta sitten

286

Elements, Compounds & Mixtures

The text discusses the basic concepts of elements, compounds, and mixtures in chemistry. Compounds are described as materials formed by the chemical bonding of two or more elements, with examples such as carbon dioxide, table salt, and water.

Elements, Compounds & Mixtures

Elements, Compounds & Mixtures

Mixture

Sand, water and gravel (Cement)
Smoke and fog (Smog)
A mixture is made when two or more substances are combined, but they are not combined chemically.

Element

examples
H - Hydrogen.
O - Oxygen.

Compound

Examples
carbondioxide
Table salt
water

Water

A compound is a material formed by chemically bonding two or more chemical elements