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WorksheetsProperties of Matter | LearnEd
Total questions: 25
Worksheet time: 13mins
Which of the following is not considered a subatomic particle that composes an atom?
Proton
Neutron
Molecule
Electron
Which is the best description of the Periodic Table of Elements?
Elements are grouped in columns based on their properties
Elements are randomly placed into columns
Elements are listed in descending order of their atomic mass
The Periodic Table constantly changes
Which gives an accurate description of the varying states of matter?
Solids are tightly packed with fast moving atoms whereas gases are loosely packed with slow moving atoms
Solids are loosely packed with fast moving atoms whereas gases are tightly packed with slow moving atoms
Solids are tightly packed with slow moving atoms whereas gases are loosely packed with fast moving atoms
Solids are loosely packed with slow moving atoms whereas gases are tightly packed with fast moving atoms
Homogeneous mixtures are best classified as
Mixtures that are composed of many differently sized parts
Mixtures that are uniform throughout
Mixtures that have changed chemical properties
Mixtures that can never be separated
Which best describes the relationship of elements and compounds?
Compounds are made up of varying elements
Elements are made up of varying compounds
Sometimes elements make up compounds and sometimes compounds make up elements
There is no relationship between elements and compounds
Which of the following would most likely be identified as a base?
A substance that is sour and has a pH of less than 7
A substance that is sour and has a pH of greater than 7
A substance that is bitter and has a pH of less than 7
A substance that is bitter and has a pH of greater than 7
The Law of Conservation of Matter states that
Matter cannot be created or destroyed in a chemical reaction
Matter can only be destroyed in a chemical reaction if it involves combustion
Matter usually will not be destroyed in a chemical reaction
The number of atoms of each element is always different in the products than in the reactants
Which two elements most likely share the same physical properties?
F and Fe
Ne and Xe
Au and K
H and He
Which is the best example of a pure substance?
Ag
Salt water
Air
Salad dressing
Which is the best example of a heterogeneous mixture?
Ag
Salt water
Air
Salad
Sodium and chlorine combine to form table salt, or NaCl. Which best describes the role of NaCl?
NaCl is a product of that reaction
NaCl is a reactant of that reaction
NaCl is the catalyst that allows the reaction to occur
NaCl is simply a mixture of Na and Cl that can be physically separated
Which best describes a physical property?
Can be observed only by changing the kind of matter studied
Can be observed without changing the kind of matter studied
Can only be observed during a chemical reaction
Can only be observed after a chemical reaction
Which best describes a chemical bond?
Electrons are shared or transferred between atoms in a solution
Protons are shared or transferred between atoms in a solution
Electrons are shared or transferred between atoms in a compound
Protons are shared or transferred between atoms in a compound
Which is the correct formula for glucose?
H2O2
NaCl
C6H12O6
C12H22O11
The atomic number of an element is equal to its number of
Electrons
Protons
Neutrons
Nuclei
Which is the best example of a chemical property?
Ability to react with oxygen
Melting point
Density
Color
Which is the best example of a physical property?
Ability to react with oxygen
Ability to react with an acid
Boiling point
None of the above
Is a combustion reaction reversible?
Yes, because the molecules can be rearranged
Yes, because it is a physical change
No, because it is a chemical change in which the atoms have been rearranged
No, because it is a physical change only
A solution has a pH of 7. Which best describes that solution?
Acidic
Basic
Heterogeneous
Neutral
Which best explains a balanced equation?
The number of atoms of elements in the products should equal that of the reactants
The number of compounds in the products should equal that of the reactants
The number of molecules in the products should equal that of the reactants
Equations are nearly impossible to balance
Which state of matter is capable of infinite expansion?
Solid
Liquid
Gas
None of the above
Which of the following best describes a molecule?
The smallest unit of an element
A unit of a compound composed of 2 or more atoms of an element
The smallest unit of life
A physical mixture of two atoms
Density is best defined as
Amount of mass per unit volume
An object’s weight
Ability to react with an acid
A chemical property
A substance has a pH of 5. Which is the most accurate statement about that substance?
It is a strong base
It is a weak base
It is a strong acid
It is a weak acid
A chemical reaction gives off heat. How can it be classified?
Basic
Acidic
Endothermic
Exothermic
