Measurement Atoms & Elements Bonds & Chemical Structures Names & Formulas 100 200 300 ------400.

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Presentation transcript:

Measurement Atoms & Elements Bonds & Chemical Structures Names & Formulas

Measurement 100 Put the following numbers in scientific notation:

Measurement 200 A mg block of an unknown material displaces cc of water. What is the density of this material (in g/mL)?

Measurement 300 A patient’s diet is restricted to 30.0 g of fat per day. If she eats a 0.20 kg burger that is 25% fat by weight, has she exceeded her fat limit for the day?

Bonds & Chemical Structures 100 How many valence electrons are in sulfur tetrafluoride?

Bonds & Chemical Structures 200 Draw the electron dot structure for hydrazine (N 2 H 4 )

Bonds & Chemical Structures 300 What is the shape of each of the following molecules? CH 4 SiH 3 Cl PF 3 H 2 S Which of these molecules are polar?

Bonds & Chemical Structures 400 Draw the Lewis dot structure for CH 2 O. Draw the Lewis dot structure for CH 3 CO 2 -. Hint: both oxygen atoms are attached to ONE of the carbon atoms Do either of these exhibit resonance?

Names & Formula 100 Name the following compounds LiBr Ca 3 N 2 Cu 2 S (Hint: one of these has multiple valencies!)

Names & Formula 200 Name the following compounds: PCl 3 N 2 O 5

Names & Formulas 300 Which of the following contains an ion with a 3+ charge? KCl Na 2 O FeCl 3 Mg(NO 3 ) 2

Names & Formula 400 Name the following compound: (NH 4 ) 2 SO 4...and… Write the formula for magnesium phosphate

Atoms & Elements 100 Describe the structure of an atom and the three types of subatomic particles

Atoms & Elements 200 Write the atomic symbols for the elements described below: An atom with 15 protons and 16 neutrons A neutral atom with 17 electrons and 20 neutrons

Atoms & Elements 300 What neutral atoms are described by the following electron configurations? 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 [Ar] 4s 2 3d 10 4p 3 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 5

Atoms & Elements 400 Consider F and Na. Which is more metallic? Which has a larger atomic radius? Which has a higher ionization energy? Which is more electronegative?