Chemistry-the study of the composition, structure
and properties of matter and the changes it
undergoes.
What objects in this room are related to Chemistry?
How did you get to school today? Any chemistry
involved?
- how it behaves, its make up, internal arrangement,
changes when heated, cool, or mixed with other
materials. ----all related to chemistry
Instruments- are used in Chemistry to extend our
ability to observe and make measurements
(microscopes,rulers, balances, spectroscopes , etc..)
Branches of Chemistry:
Organic- the study of carbon containing
compounds.
Inorganic- the study of all substances not
classified as organic.
Physical- the study of the properties and the
changes of matter and their relation to energy.
Analytical- the I.D. Of the components and
composition of materials.
Biochemisty – the study of substances and
processed occurring in living things.
Theoretical- designing and predicting the
properties of new compounds
Chemical- any substance that has a definite
composition (sucrose, glucose, water ,CO2 )
Basic research-is carried out for the sake of
increasing knowledge.
Applied research- carried out to solve a
problem ( a new environmentally refrigerant
to replace freon)
Technological development- involves the
production and use of products that improve
our quality of life. (computers, catalytic
converters, biodegradable materials, )
Technology- is the application of knowledge
for practical purposes
Matter- anything that has mass and takes up
space
Volume- the amount of 3 dimensional space
an object occupies.
Atom- the smallest unit of an element that
maintains the properties of that element.
Element- is a pure substance made of only
one kind of atom.
Molecule- the smallest unit of an element or
compound that retains all of the properties .
Compound- a substance that is made from
the atoms of 2 or more elements that are
chemically bonded.
Products- Substances that are formed in a
chemical reaction.
Reactants- substances that react in a chemical
reaction
Reactants
Products
Plasma- a high temp. physical state of matter in
which atoms lose their electrons.
Chemical properties- relates to a substance’s
ability to undergo changes that transform it into
different substances.
Physical properties- characteristics that can be
observed or measured without changing the identity
of the substance (melting point, boiling point)
Physical state- is a basic property of matter.
Solid- definite volume and shape(tightly packed )
(coal, quartz)
Liquid- has a definite volume but no definite
shape(takes the shape of the container)
- able to slide past each other
Gas-(fills its available volume) no definite volume
or shape- particles move rapidly and are far apart.
Matter- anything that has mass and takes up space
(air, smoke water vapor)
How would you write the equation for the
reaction in which water is produced from
hydrogen and oxygen?
How would you write the equation for the
reaction of oxygen with hydrogen to produce
water?
How would you write the reaction for water
being decomposed to produce hydrogen and
oxygen?
The equation for the burning of ethanol in
oxygen to produce carbon dioxide and water
would be____________
Nitrogen monoxide and oxygen, both
colorless gases, form a red-brown gas when
mixed. Nitrogen monoxide and oxygen are
known as the ___________.
Light is not matter.
Endothermic reaction- a reaction in which
heat is absorbed (the container gets colder)
Exothermic reaction- a reaction in which heat
is released….