Transcript Friday, March 4, 2011 Chemistry B Final Exam Review

Friday, March 4, 2011
Chemistry B
Final Exam Review
Brain-Based Emphasis
Inkster High School
Mrs. Gall
Friday, March 4, 2011
• DO NOW: List all of the noble gases. List all of the
elements in column 2 (II) of the Periodic Table.
What do the elements in list 1 have in common
with each other? List 2?
• HOMEWORK: Complete and Study Review
• AIMS:
– The Learner Will Understand the nature of science and demonstrate an
ability to practice scientific reasoning by applying it to final exam review
exercises. (HSSCEs: P1 and P2: Inquiry, Reflection, and Social Implications)
Friday, March 4, 2011. LESSON STEPS.
1.
2.
3.
4.
Complete today’s DO NOW activity in writing.
Review Lesson Steps.
Discuss DO NOW activity.
Frontal teaching: Complete Interactive
Review Handout
5. Homework: Complete and Study Review
Handout
Noble gases
What do these Noble Gases have in
common?
Alkali earth metals (column II)
Alkali earth metals (column II)
The elements in the tall box
all have 2 valence electrons.
They bond similarly and
have the same properties.
The
elements in
the green
box have
different
numbers of
valence
electrons
and
different
properties.
What do these Column II Alkali Earth
Metals have in common?
P-E-N
• Proton
• Positive
• Inside the nucleus, mass is 1 amu (massive)
• Electron
• Negative
• Very little mass; outside the nucleus
• Neutron
• No charge
• Inside the nucleus, mass is 1 amu (massive)
P-E-N
• Proton
• The number of protons is the ATOMIC NUMBER.
• It is a WHOLE NUMBER in the element box on the
PTable
• Electron
• The number of electrons is the same as the number of
protons in a NEUTRAL ATOM. (more details soon)
• Neutron
• The number of protons + number of neutrons = atomic
mass.
• ROUND the atomic mass to a whole number. Subtract
the atomic number (number of protons). THIS is the
number of neutrons!
Memory tricks
• GENES  PROTEINS
•
•
•
•
Genes are located on chromosomes
Chromosomes are made of DNA
DNA codes for PROTEINS
NOT lipids, carbs, sugars! These come from somewhere
else, and are stored in the body.
• GENES  PROTEINS
Memory tricks
• CHOw down
• If it can eat or be eaten, it’s organic
• Organic compounds contain C, H, and O
• Carbon, Hydrogen, and Oxygen
Organic – means it has Carbon (C )
, Hydrogen ( H ) and Oxygen
(O )
CHOw down!
Acid rain in a lake
• Acid + base = neutral
• Acid lake + BASE (limestone) = HEALTHY LAKE
Acid rain – filled Lake: BEFORE.
Limestone (BASE) is
added.
Now we have a
NEUTRAL, HEALTHY
Lake!-- AFTER
Question format: let’s practice
Question format: let’s practice
Question format: let’s practice
A graph with few labels. Look:
A graph with few labels. Look:
There are 8 different
substances. Each one has a
number (at the bottom of the
graph). They don’t seem to be
in any special (particular)
order.
A graph with few labels. Look:
The Density axis has no labels. We know it must go from a small number at the
bottom (small bars) to larger numbers at
the top (tall bars) because bar graphs are
designed to show small and large amounts
with short and long bars.
A graph with few labels. Look:
Large
density
For tall bars
Small
density
For short
bars
High vs Low Density
Which is more dense,
a bolt or a ping pong
ball?
Which is more dense,
corn syrup or milk?
Which is LESS
dense, vegetable or
rubbing alcohol?
How can you figure
out these answers?
Low density floats;
High density sinks