What is a chemical reaction? chemical reaction- when one or more substances changes into one or more...
-
Upload
lizbeth-barrett -
Category
Documents
-
view
217 -
download
0
description
Transcript of What is a chemical reaction? chemical reaction- when one or more substances changes into one or more...
![Page 1: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/1.jpg)
![Page 2: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/2.jpg)
What is a chemical reaction?
chemical reaction-when one or more substances changes into one or more new substances
Two important key terms in a chemical reaction:1) reactants-
2) products-
the substance(s) that undergo change
the new substance(s) that are formed
Reactant + Reactant ----> Product
![Page 3: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/3.jpg)
Writing/reading Chemical Writing/reading Chemical EquationsEquationsChemists use chemical equations describe
what reactions are taking place by writing an equationWord equations are a simple list of:
1) reactant(s) 2) product(s)Rules of word equations:
2) reactant(s) are always to the LEFT3) product(s) are always to the RIGHT
1) the reactants & products are separated by and arrow (means “yields”)
4) Use a + sign if there are more than one reactant or product
![Page 4: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/4.jpg)
coefficient
H2 + O2 2H2O
subscript
yield
Multiply
![Page 5: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/5.jpg)
Think of saying that there are TWO H2O’s
H2 + O2 2H2O Subscr
ipt TELLS 2 H’s
Coefficient x subscript
Subscript T
ELLS 2 O’s
TWO H2O’s = H2O + H2OAdding this way= 4 H’s and 2 O’s
![Page 6: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/6.jpg)
1) What number represents the coefficient?2) What number represents the subscript?
4) What element is represented by the letter H?
3) How many “H’s” do you have?
52
Hydrogen
5x2=10
5H2
Answer a few questions about:
![Page 7: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/7.jpg)
Most simple compounds only have 2words in their names
Naming Chemical formulas
Rules for simple compounds:
1. Write the 1st elements original name
2. Write the 2nd elements original name BUT change the suffix to “ide”
![Page 8: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/8.jpg)
carbon + hydrogen=
sodium + chlorine =
aluminum + oxygen=
Naming Binary Compounds
Carbon hydroxide
sodium chloride
aluminium oxide
![Page 9: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/9.jpg)
lithium+ oxygen=
beryllium+ nitrogen=
potassium + sulfur=
aluminum + chlorine=
Lithium + sulfur=
magnesium + sulfur=
You try…lithium oxide
beryllium nitride
potassium sulfide
aluminum chloride
lithium sulfide
magnesium sulfide
Naming Binary Compounds
![Page 10: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/10.jpg)
Li + O=
Al + Br =
Ni + S =
Fe + O =
K + Cl =
lithium oxide
aluminum bromide
nickel sulfide
iron oxide
potassium chloride
Writing Binary CompoundsYou try…
![Page 11: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/11.jpg)
Advanced Naming: Chart using chlorine
![Page 12: What is a chemical reaction? chemical reaction- when one or more substances changes into one or more new substances Two important key terms in a chemical.](https://reader036.fdocuments.net/reader036/viewer/2022081323/5a4d1b8a7f8b9ab0599be9c9/html5/thumbnails/12.jpg)
1) Carbon + (1) Oxygen =
(1) Carbon + (2) Oxygen =
(1) Carbon + (4) Chlorine =
Advanced Naming Continued
Carbon monoxide
Carbon dioxide
Carbon tetrachloride
You try…