Font size
WorksheetsChemistry Part 1
Total questions: 17
Worksheet time: 16mins
Matter is any substance that:
contains carbon
has mass and occupies space
is soluble in water
The simplest form of matter that contains only one type of atom is a/an:
The basic unit of all matter that cannot be divided into simpler substances by ordinary means is a/an:
Any substance made up of two or more elements joined together chemically in definite or fixed proportions is a/an:
molecule
When hydrogen peroxide mixes with tint and begins to oxidize, the action is a:
physical change
temporary change
change in the state of matter
chemical change
When a physical change occurs in a substance, there is:
No change in the state of matter.
A change in the form without a chemical reaction.
The pH scale measures:
What is the pH range of alkalis?
What is the pH range of acids?
A substance that has more hydroxide ions will be (a) while a substance with more hydrogen ions will be (b)
Acid solutions (a) the cuticle, while alkaline solutions (b) the cuticle.
Match the following
When hydrogen is added to a substance or when oxygen is subtracted
reduction
Chemical reactions that result in the absorption of energy or heat from an outside source
endothermic
Chemical reactions that release a significant amount of heat
exothermic
When a substance is combined with oxygen or hydrogen is lost
oxidation
When oxidation and reduction occur at the same time
redox
What is the universal solvent, and also the substance that anything that has a pH must contain?
(a)
The term logarithm means multiples of:
(a)
Match the following
An atom or molecule that carries an electric charge
ion
A chemical combination of matter in definite or fixed proportions
pure substance
A physical combination of matter in any proportion
physical mixture
The rapid oxidation of a substance accompanied by light and heat
combustion
Give an example of an acid and an alkali used in Cosmetology:
An oxidizing agent (a) while a reducing agent (b)
A
