EduNinjaA list of substances is shown.
Answer the questions using the list of substances.
Each substance may be used once, more than once or not at all.
State which of the substances:
is a form of carbon.
A list of substances is shown.
> ammonia bauxite carbon dioxide carbon monoxide ethanol hematite oxygen sodium chloride sulfur dioxide
Answer the questions using the list of substances.
Each substance may be used once, more than once or not at all.
State which substance is:
an element ..... [1]
The names of nine substances are shown.
> aluminium oxide ammonia carbon monoxide anhydrous cobalt(II) chloride hydrated copper(II) sulfate iron(III) oxide nitrogen dioxide silver steel
Answer the following questions using these substances. Each substance may be used once, more than once or not at all.
Name the substance that is:
an element ..... [1]
Answer the following questions using only the substances in the list. Each substance may be used once, more than once or not at all.
State which substance is:
an element ..... [1]
Substances can be classified as elements, compounds or mixtures.
What is meant by the term compound?
This question is about gases.
Air is a mixture. Nitrogen and oxygen are the two most common gases in air.
What is meant by the term mixture?
Substances can be classified as elements, compounds or mixtures.
State whether each of the following is an element, a compound or a mixture.
brass ..... [1]
gold ..... [1]
butane ..... [1]
air ..... [1]
State what is meant by the terms
element,
compound,
Give the formula of a compound that contains
only boron and oxygen,
only lithium and nitrogen.
Gallium is a Group III element.
Define the term element.