Ionic and Covalent bonding, Nomenclature

  

 

Assignment:

 Nomenclature practice sheet. Do these practice sheets for 10 marks homework check

Answer key is here

Table of alkanes from wikipedia 

Practice making lego formulae

 practice making lego formulae.  Take a picture of the lego formulae you did in class

We will learn the analogy of LEGO and  practice building lego compounds, and writing lego formulae

Take a picture of the work you did in class

15 marks

Examples:

 

An introduction to Chemistry: The analogy of the Atom as lego

  

An analogy for Atoms, Compounds and Formula, drawn by SN This video is the first in the series for beginner Chemistry. In this video, I use the analogy of the atom as units very much like "lego bricks". This analogy was first used by researchers in MIT.

Science Observation and Measurement Activity

 In this lab you will take the following measurements and you will tell me how you arrived at your answer

1.  Find the volume of our classroom using only metre sticks.  Enter the data on the chart on the side of the class

2. Find the mass of the science chair using only a bathroom scale

3.  observa n interesting object under the dissecting microscope. Measure its size in the field of view.  

4.  Measure the volume of a  REGULAR shape of your choice

5.  Measure the volume of an IRREGULAR shape of your choice.

Show your work and hand this in . There are 5 points per question

/25 points

Kinetic Energy : Solve these problems

1. What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s? 

2. An object has a kinetic energy of 25 J and a mass of 34 kg , how fast is the object moving? 

3. An object moving with a speed of 35 m/s and has a kinetic energy of 1500 J, what is the mass of the object.

 4. What is the Kinetic Energy of a 1200 kg object that is moving with a speed of 24 m/s? 

5. An object has a kinetic energy of 14 J and a mass of 17 kg , how fast is the object moving? 

6. An object moving with a speed of 67 m/s and has a kinetic energy of 500 J, what is the mass of the object. 

7. What is the Kinetic Energy of a 478 kg object that is moving with a speed of 15 m/s? 

8. An object has a kinetic energy of 88 J and a mass of 45 kg , how fast is the object moving? 9. An object moving with a speed of 21 m/s and has a kinetic energy of 140 J, what is the mass of the object. 

10. What is the Kinetic Energy of a 100 kg object that is moving with a speed of 12.5 m/s?

Introduction to Radioactivity

 Here are the Fusion and Fission notes 

I gave you a worksheet called 7.3 Nuclear Reactions, the answer key to that is here

There is also the Radioactive unit exam study guide  and Answer key 

Here is the powerpoint on the nuclear bomb

X-linked genes

 SEX LINKED GENES

In the following post, I will refer to the term  "male" and "female".  This refers to people with male sex organs or people with female sex organs.  People with these organs can identify with a diverse range of gender such as:

Man, woman, nonbinary. This gender identify is not presumed by the presence of male or female sex organs

They might also identify as

LGBTQ2S++

The following descriptions are biological descriptions refer to 

male= has male sex organs like testes, producing male gametes such as sperm

female= has female sex organs like ovaries, producing female gametes such as  eggs. 

The sex chromosomes are XX and XY in humans. Some alleles are located on the X chromosome. But very few on the Y chromosome.  Remember that people who are  females have the genotype XX and people who are males have XY.

The Y chromosome carries very little information, only enough to influence the embryo on the path towards male primary and secondary characteristics.

Meanwhile, many RECESSIVE ALLELES are located on the X chromosome, including
1. hemophilia, the inability to clot blood
2. colourblindness inability to tell the difference between red and green colour
3.  baldness

These characteristics are far more common in people with male sex organs  than people with female sex organs because  people with male organs have only one X. And if that X contains the recessive allele, they will show the phenotype.  Meanwhile,people with  female organs may have the recessive and their dominant genes on their other X will protect them.  For example

An example of using a punnet square to calculate probability is here:

Some things to note about sex linkage:  Signs of sex linked alleles are:
1. more genotypic males get the phenotype, but genotypic females can be carriers
2.  males can inherit from mother but not father (because males get their X from mom)
3.  genotypic females have an extra X and this protects them.  Females must be homozygous to show the sex linked phenotype.
Further reading on sex linkage here http://learn.genetics.utah.edu/content/pigeons/sexlinkage/


FYI if you were born a male and you want to know if you're colourblind:  Test yourself here: But careful, if you are a genetically male, you might find out you are colour blind!  Apparently most people find out they are colourblind from their science teacher !  
http://colorvisiontesting.com/home.html

Basic practice worksheet going over main concepts

Worksheet B