Assessment Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper.
1. How do elements in a compound be separated?
a. physical processes
b. chemical processes
c. both physical and chemical processes
d. neither physical nor chemical processes C.
2. What is the primary substance that cannot be separated into simpler materials?
a. element
b. compound
c. homogeneous mixture
d. heterogeneous mixture
3. Some symbols of the elements like iron and silver are taken from their ancient names. What are their symbols?
a. I and S
b. In and Sr
c. Fe and Ag
d. Hg and Pb.

IF U ANSWER TGI SPLEASE PUT AN EXPLENATION

The two or more component elements of a compound can be separated through chemical reactions. Chemical compounds have a unique and defined structure, which consists of a fixed ratio of atoms held together in a defined spatial arrangement by chemical bonds.

2. A.

Explanation:

Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.

3. C.

Explanation:

Iron = Fe = Ferrum

The name derives from the Anglo-Saxon iron of unknown origin. The element has been known from prehistoric times. The symbol Fe is derived from the Latin ferrum for "firmness".

Silver = Ag = Argentum

The symbol Ag derives from the Latin argentum and Sanskrit argunas from "bright". Silver was known in prehistoric times.