STATES OF MATTER Matter
PHYSICAL AND CHEMICAL CHANGES
THE PERIODIC TABLE
CHANGES IN MATTER
CHEMICAL REACTIONS
100
solids,liquids, and gases
What is the three states of matter?
100
A physical chang alters the form of the substance, but does not change it into another substance.
What is a physical change?
100
The periodic table is a table that list all the elements both found commonly in nature and man-made.
What is the periodic table?
100
Chemistry is the study of the properties of matter and how matter changes ?
What is chemistry ?
100
A chemical equation is a shorter, easier way to show chemical reactions using symbols instead of words.
What is a chemical equation?
200
they are tightly packed
What is the arrangement of molescules in a solid ?
200
A chemical change alters the substance , and its properties.
What is a chemical change?
200
The periodic table is arranged from increasing atomic number from left to right.
What is arrangement of the periodic table ?
200
an element is a substance that cannot be broken down into any other substance by any chemical or physical means.
What is an element?
200
A chemical formula is a combination of symbols that represent the elements in a compound.
What is a chemical formuls ?
300
The molecules are closer than a solid and take the shape of the container.
What is the molecular arrangement in a liquid?
300
Mattewr changes when ever energy is added or taken away.
What happens when a substance gains or loses energy?
300
Each element listed on the periodic table lists the atomic number, the elements symbol, elements name , and atomic mass.
What is the information given for each element on the periodic table ?
300
A compound is a substance made of two or more elements chemically combined in a specific ratio, or porportion.
What is a compound ?
300
A subscript shows the number of atoms of an element in a molecule or ratio of elements in a compound.
What is a subscript?
400
The molecules in a gas are spread apart and are free to move about .
What is molecular arrangement of a gas?
400
The celsius temperature at which water freezes is 0oC.
What is the celsius temperature at which water freezes?
400
The atomic mass tells you the number of neutrons present in the nucleus of that element.
What information can the atomic mass tell you about each element?
400
A mixture consists of two or more pure substances- elements , compounds, or both-that are in the same place but chemically combined.
What is a mixture ?
400
The formula for a chemical equation is written reactant + reactant arrow pointing to the right (Yields ) product.
What is the formula for a chemical equation ?
500
A change of state is a solid changing to a liquid or gas?
What is a change of state of matter ?
500
The celsius boiling point of water is 100oC .
What is celsius boiling point of water?
500
The first shell can hold two electrons, the second shell holds eight electrons, and the third shell,16 electrons.
What is arrangement of electrons in the first three shells ?
500
A chemical bond is the force that holds atoms together.
What is a chemical bond ?
500
The principal for the conservation of mass is that during a chemical reaction , matter is not created or destroyed.
What is principal of the conservation of mass ?
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