What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are...
-
Upload
dortha-stewart -
Category
Documents
-
view
217 -
download
0
description
Transcript of What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are...
![Page 1: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/1.jpg)
What do you know about this equation?
C6H12O6 + 6O2 6CO2 + 6H2OWhat elements are present?
How many of each are there?
What compounds are involved?
What is this an equation for?
![Page 2: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/2.jpg)
The Nature of Matter2-1
![Page 3: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/3.jpg)
I. AtomsA. Greek for “unable to be cut”B. 100 million atoms in a row = 1 cmC. Made up of subatomic particles:
1. protons (+)2. neutrons (no charge –
neutral)3. electrons (-)
![Page 4: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/4.jpg)
II. ElementsA. Substances made up of only one kind of atom
1. over 100 known elements2. only about 20 found in living
things3. atomic # = number of protons
(or electrons since they are equal)4. The most abundant elements in
living things are CHNOPS
![Page 5: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/5.jpg)
BSi
Ge AsSb Te
At
http://www.youtube.com/watch?v=r7hO-1ItqXw
![Page 6: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/6.jpg)
III. Chemical CompoundsA. A substance formed by the chemical
combination of two or more elements in definite proportions
B. Examples : H2O, NaCl
![Page 7: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/7.jpg)
C. Properties of the compound can be different than those of the element
Example 1: H and O are gases but together they are liquid
Example 2: Cl alone is a poisonous gas but with Na it creates harmless salt
![Page 8: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/8.jpg)
IV. Chemical BondsIV. Chemical BondsA. All atoms want to have 8 “valence electrons” in their outer shell in order to be happy. If they don’t they often bond with other atoms.
![Page 9: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/9.jpg)
V. Ionic BondingV. Ionic BondingA. When one atom donates electrons to another. B. Some atoms like to lose electrons to make a shell of 8 and others like to gain them (usually happens between metals and non metals)
![Page 10: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/10.jpg)
Ionic Bonds between Na and Cl
![Page 11: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/11.jpg)
VI. Covalent BondingVI. Covalent BondingA. Electrons are shared instead of lost or gained to form a molecule.B. Single bond - sharing a pair (2) electrons
C. Double = sharing 2 pairs (4) electrons
![Page 12: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/12.jpg)
VII. Hydrogen Bonds Water molecules have very special
properties that attract them to one another
These weak bonds (attraction) between water molecules are called Hydrogen bonds
![Page 13: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/13.jpg)
Why Discuss WATER?
• All living things depend on it.
• Over 60% of the human body is water
https://www.youtube.com/watch?v=nSENolWbyYQ
![Page 14: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/14.jpg)
VIII. The Water MoleculeVIII. The Water MoleculeA. H2O = held together by covalent bonds
B. Oxygen is bigger so the electrons are shared but unequally. Oxygen becomes slightly negative and hydrogen, slightly positive.
C. This makes water a polar molecule(it has a slightly + and – side!)
https://www.youtube.com/watch?v=zCheAcpFkL8
![Page 15: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/15.jpg)
Draw a picture in your notes of two water molecules interacting. Label the charges on oxygen and
hydrogen atoms, and label the hydrogen bond between the water molecules.
![Page 16: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/16.jpg)
IX. Cohesion1. Cohesion – the attraction between molecules of the samesame substanceExample: Water sticking to other water molecules!
2. Responsible for surface tension
![Page 17: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/17.jpg)
3. Adhesion – attraction between molecules of different substances
Example: Water sticking to a leaf
X. Adhesion
![Page 18: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/18.jpg)
4. Capillary Action- ability of a liquid (WATER) to flow in narrow spaces against gravity due to adhesion and cohesion.Example: water moving up roots/stems of plants!!
Capillary Action
XI. Adhesion and Cohesion play a role in Plants!
![Page 19: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/19.jpg)
![Page 20: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/20.jpg)
![Page 21: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/21.jpg)
XII. Polar VS. Non-Polar
Polar molecules are not attracted to non-polar molecules like oil
![Page 22: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/22.jpg)
Do NowWhat are the weak bonds that form between two or more water (H2O) molecules?
![Page 23: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/23.jpg)
Today’s Objective To observe the properties of water (cohesion
and adhesion) in a Water Lab. Water is vital for living things and cellular
processes.
1. Go over lab procedure 2. Distribute supplies 3. Complete lab (Part 1) and answer
questions 4. Clean up and review findings
![Page 24: What do you know about this equation? C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O What elements are present?…](https://reader035.fdocuments.net/reader035/viewer/2022081606/5a4d1bfa7f8b9ab0599ebb6a/html5/thumbnails/24.jpg)
Exit Card What is the difference between adhesion
and cohesion? Can you name the steps of the water
cycle? How might cohesion play a role in the
water cycle?