Friday, March 4, 2011 Chemistry B Final Exam Review Brain-Based Emphasis Inkster High School Mrs. Gall.

Friday, March 4, 2011Chemistry B

Final Exam Review

Brain-Based EmphasisInkster 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. Complete today’s DO NOW activity in writing. 2. Review Lesson Steps.3. Discuss DO NOW activity. 4. Frontal teaching: Complete Interactive

Review Handout5. 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 amountswith short and long bars.

A graph with few labels. Look:

Large densityFor tall bars

Small density For short bars

High vs Low DensityWhich 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