Elements and Compounds

Front

Which of the following is an element? Carbon monoxide, Germanium, Glucose, Nitrous oxide

Back

Germanium

Front

Which of the following is the simplest form of substance? solution, compound, element, mixture

Back

element

Front

When one or more substance is combined it is called _________________.

Back

compound

Front

Which of the following statements describes an element?

• It contains only one kind of atom.
• It can be decomposed by ordinary chemical means.
• It is composed of atoms of two or more elements that bond together.
• It has unique properties that are different from the properties of its individual elements.

Back

It contains only one kind of atom.

Front

Which of the following statements describes a compound?

Back

It consists of atoms of two or more different elements bond together.

Front

What elements compose methane?

Back

Hydrogen and Carbon

Front

Which of these materials are compounds? Sodium bicarbonate, hydrogen peroxide, iodine, and iron.

Back

Sodium bicarbonate and hydrogen peroxide

Front

Which of the following is NOT a compound?
- Monosodium glutamate
- Sodium chloride
- Citric acid
- Krypton

Back

Krypton

Front

What elements make up the compound Carbon dioxide?

Back

Carbon and Oxygen

Front

Which of the following statements is true about the illustrations below?
Options:
1. Illustrations I and IV are elements; Illustrations II and III are compounds.
2. Illustrations II and III are elements; Illustrations II and IV are compounds.
3. Illustrations I and II are elements; Illustrations III and IV are compounds.
4. Illustrations III and IV are elements; Illustrations I and II are compounds.

Back

Illustrations I and IV are elements; Illustrations II and III are compounds.