WorksheetsGeneral Chemistry 1 Module 1-4
Total questions: 20
Worksheet time: 10mins
Which of the following describes a chemical change?
water boiling to form steam
sugar dissolving in a cup of coffee
hamburger grease solidifying on a plate
tarnishing of silver
A homogenous mixture can be separated by all of the following methods except
filtration
chromatography
crystallization
distillation
Which of the following is not a pure substance?
Hydrogen
Oxygen
Water
Milk
Which of the following is a homogenous mixture?
HCl (aq)
I2 (s)
HCl (g)
I2 (l)
Which of the following phase changes represent sublimation?
solid to gas
gas to solid
solid to liquid
gas to liquid
A chemical formula is an expression used to represent _____________.
mixtures only
elements only
compounds only
elements and compounds
When sugar is dissolved in water, the resulting solution is classified as a __________________.
homogenous mixture
heterogenous mixture
homogenous compound
heterogenous compound
An element is made of one type of _______.
molecule
atom
compound
mixture
A compound is ___________________.
a substance that is composed of two or more elements that are chemically bonded
a molecule formed by atoms of the same element
another word for an atom
any substances that can be split apart
Extensive properties include _________________.
boiling point
do not depend on the mount of matter present
all depend on the chemical composition of the matter present
volume and mass
Which of the following is an intensive property of matter?
Volume
Mass
Density
Energy content
A change in a substance that does not involve a change in the identity of the substance is called (a)n ________________________.
Chemical change
Physical change
Extensive property
Intensive property
In every chemical change, two or more reactants form at least one ____________.
Gas
Precipitate
Product
Reaction
What is the chemical formula of common table salt?
NaCl
NACL
Na2Cl
NaCl2
What is the common name for Acetic Acid (C2H3O2)?
Soy Sauce
Vinegar
Fish Sauce
Sugar
What is the chemical formula for Ferrous Sulphate?
FeSO2
Fe2SO3
FeSO4
Fe3SO2
What do you call the goods that are bought for consumption by the average consumer?
Science
Consumer Products
Field
Composition
What do you call the common technique in separating components of mixtures in washing the rice?
Filtration
Decantation
Distillation
Floatation
The primary source of income for residents of Sinaloc, El Salvador City, is salt production. What is the common term for the technique used to separate mixtures that involves salt production?
Evaporation
Filtration
Decantation
Distillation
What is the common term for the technique used to separate mixtures that is used to separate blood components?
Decantation
Distillation
Crystallization
Centrifugation
