~ as was mentioned earlier, when two or more elements come together chemically, you get a compound....

15
~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different elements that mean specific things….scarrry things…

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Page 1: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different elements that mean specific things….scarrry things…

Page 2: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

CHEMICALFORMULAS

Page 3: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different
Page 4: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

WATER

H2O

HYDROGEN OXYGENTHIS SUBSCRIPT 2

MEANS THERE ARE

TWO (2) ATOMS OF

HYDROGEN IN WATER

Whenever you see a subscript number to the right of an element or atom, it means

There are that many atoms in the compound. BUT when no number is present, it

Is assumed that the number of atoms in the compound is just one (1)

Thus, in water there are 2 Hydrogen atoms and only

1 Oxygen

Page 5: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

H2O• Here is what it looks like:

O

H

H

Page 6: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

Try Some…

Page 7: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different
Page 8: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

NaCl (table salt)

How many of each in table salt?

Na (sodium) =

Cl (chlorine) =

1

1

Na Cl

Page 9: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different
Page 10: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

HClHydrochloric Acid

H (Hydrogen) =

Cl (Chlorine) =

1

1

How many

elements are

present in this

compound?

(Add the total in the

Formula)

2

Page 11: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different
Page 12: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

C6H12O6(Sugar)

C (Carbon) =

H (Hydrogen) =

O (Oxygen) =

6

12

6 Total = 24

Page 13: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different
Page 14: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

Be3Al2SiO6Emerald

• Write this formula down on your paper, identify the elements, how many of each, and the total number –

Beryllium (3), Aluminum (2), Silicon (1), Oxygen (6)Total = (12)

Page 15: ~ As was mentioned earlier, when two or more elements come together chemically, you get a compound. But, there are often numbers attached to different

Chemical Name Formulas

Element 1 Element 2 Totals

1 potassium fluoride

KF

2 calcium chloride

CaCl2

3 barium bromide BaBr2

4 silver sulfide

Ag2S

5 aluminum iodide

AlI3

6 potassium iodide

KI