Download chemistry basics note - bramalea2010-msmanning

SBI3C
Name:____________________
Use pg 20-23 to complete the following.
Elements and Molecules
 Chemistry is the study of ____________.
 Matter is composed of tiny particles called atoms that consist of _____________,
________________and _______________.
 The _____________ table lists elements in order of increasing atomic number.
 Molecules are ____________________________________________________.
 Molecules can contain only one element (i.e _______) or may contain different types
of elements (i.e. ____)
 Subscripts, ___, ___, ____ and_____ refer to the state of the substance – solid,
liquid, gas or ________________ __________.
 The symbol (aq) means that the substance is ______________________________.
Draw and Label Fig 2 below to show two examples of molecules.
Chemical Bonds
 Atoms form chemical bonds by gaining or losing ____________, or by sharing them.
 __________bonds form between oppositely charge ions (charged atoms).
 Covalent bonds form when atoms ________electrons.
 Polar molecules are molecules that have a ______________charged end and a
negatively charged end.
 Nonpolar molecules do not have ___________ _________.
Hydrogen Bonds
 The strongest intermolecular bond is the __________bond which forms between
highly polar molecules containing combinations of hydrogen, oxygen and nitrogen.
 ______________molecules form hydrogen bonds.
Water: A Very Important Molecule
 Water is probably the most ______________molecule on earth.
 Water makes up about _______ ________of your bodies mass.
 Water is composed of _________________________________________________.
 Hydrogen bonds form between water molecules and are difficult to break and are
responsible for waters ________________________________.
Draw and label Fig 7 below to show hydrogen bonding in water molecules.
Aqueous Soluations
 When predicting whether or not a substance will dissolve in water, scientists use the
saying ________________. Meaning _________________________________
___________________________________________________________________
 Hydrophobic means __________________________________________________
 An example of a hydrophobic substance is _____________.
 Hydrophilic means ___________________________________________________
 An example of a hydrophilic substance is______________.
Concentration
 The concentration of a solution is _______________________________________.
 Concentration can be expressed in many ways, list a few
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