2) AgNO3 + Cu Cu(NO3)2 + Ag 3) CF4 + Br2 CBr4 + F2

4) GaF3 + Cs CsF + Ga

5) N2 + H2 NH3

6) NaF + Br2 NaBr + F2

7) CH4 + O2 CO2 + H2O

8) K + Cl2 KCl

9) Al + HCl H2 + AlCl3

10) N2 + F2 NF3

11) SO2 + Li2Se SSe2 + Li2O

12) NH3 + H2SO4 (NH4)2SO4

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)