ch. 5, gas laws

Question 1

the major components of Earth’s atmosphere: …% nitrogen, …%oxygen

Answer 1

78; 21

Question 2

greenhouse effect: … from a planet’s atmosphere …the planet’s surface more than what it would be without its atmosphere

Answer 2

radiation; warms

Question 3

the usual test for oxygen is to lower a glowing … into the gas and see if the oxidation … in its rate to ….

Answer 3

splint; increases; reignite the splint

Question 4

because of its higher energy content, ozone is more … than oxygen

Answer 4

chemically reactive

Question 5

3O2 + elec. →

Answer 5

O3

Question 6

electrolysis of water is the process of passing an … through water to cause it to …

Answer 6

electric current; decompose

Question 7

very active metal + water →

Answer 7

hydrogen + metal hydroxide

Question 8

active metal + dilute acid →

Answer 8

hydrogen + salt of the acid

Question 9

at higher altitudes, the weight of the overlying atmosphere is …., so the pressure is …

Answer 9

less; less

Question 10

graham’s law relates to

Answer 10

diffusion

Question 11

boyle’s law relates to

Answer 11

pressure and volume

Question 12

gay-lussac’s law relates to

Answer 12

pressure and temp