Chemistry Objective: Warm-up: Students will: -->write names and formulas for binary molecular compounds. All molecular compounds are made up.
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1 Chemistry Objective: Students will: -->write names and formulas for binary molecular compounds. Warm-up: All molecular compounds are made up.
2 Of course, there are common names for some compounds that you will just know like ammonia and water. That doesn't help for the millions of existing molecular compounds, however.
3 Of course, there are common names for some compounds that you will just know like ammonia and water. That doesn't help for the millions of existing molecular compounds, however. When you name molecular compounds, you will follow a few basic steps you can learn.
4 Of course, there are common names for some compounds that you will just know like ammonia and water. That doesn't help for the millions of existing molecular compounds, however. When you name molecular compounds, you will follow a few basic steps you can learn. The steps are straightforward and with a little practice, you should have no problem naming these compounds.
5 FIRST - please understand that we will only be naming and writing formulas for BINARY Molecular.
6 FIRST - please understand that we will only be naming and writing formulas for BINARY Molecular. Binary compound, ANY binary compound, is made up of only TWO types of atoms.
7 FIRST - please understand that we will only be naming and writing formulas for BINARY Molecular. Binary compound, ANY binary compound, is made up of only TWO types of atoms. But the biggest thing you have to do is make sure that you have a MOLECULAR Compound.
8 Remember that Molecular are made up of TWO NONMETALS.
9 Prefixes Used in Naming Molecular Prefix mono Corresponding # 1 Prefix hexa Corresponding # 6 di 2 hepta 7 tri tetra 3 4 octa nona 8 9 penta 5 deca 10
10 Steps for naming molecular compounds Step 1: Step 2:
11 Steps for naming molecular compounds Step 1: Write the name of the first element. Step 2:
12 Steps for naming molecular compounds Step 1: Write the name of the first element. If there is more than one of that type of atom, use the correct prefix. Step 2:
13 Steps for naming molecular compounds Step 1: Write the name of the first element. If there is more than one of that type of atom, use the correct prefix. Step 2: Using the correct prefix, write the name of the second element with its prefix ending in ide.
14 Examples: CBr4 P2O5 N2O
15 Examples: CBr4 carbon tetrabromide P2O5 disphosphorus pentoxide N2O dinitrogen monoxide
16 But of course since we know how to write names, we also have to be able to write formulas as well.
17 But of course since we know how to write names, we also have to be able to write formulas as well. Writing formulas are just as simple, because there is no need to get charges and switch the values if they don t cancel out.
18 But of course since we know how to write names, we also have to be able to write formulas as well. Writing formulas are just as simple, because there is no need to get charges and switch the values if they don t cancel out. Writing formulas for molecular compounds is a matter of writing what you see.
19 Writing formulas for molecular compounds is a matter of writing what you see. carbon dioxide carbon monoxide nitrogen trichloride triboron hexabromide
20 Writing formulas for molecular compounds is a matter of writing what you see. carbon dioxide CO2 carbon monoxide nitrogen trichloride CO NCl3 triboron hexabromide B3Br6
21 YOUR TURN Part A. Complete each chemical name: 1. P2O3 diphosphorous oxide 2. P2O5 phosphorous oxide 3. SO3 trioxide Part B. Write the names of each. 1. SiO2 2. SO2 3. CF4 4. N2O3 5. NF3 6. GeCl4 7. PBr5 8. H2O 4. S2Cl5 disulfur 5. NO oxide Part C. Write the formula of each. 1. phosphorus trichloride 2. dinitrogen tetroxide 3. carbon disulfide 4. diphosphorus hexaiodide 5. sulfur trifluoride 6. carbon tetrachloride
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