In an experiment, a student wants to increase the rate of a reaction that involves gases. which change to the re
accomplish this?
o
increase the volume to dec ease pressure and to increase concentration.
increase the volume to increase pressure and to decrease concentration.
decrease the volume to decrease pressure and to increase concentration
decrease the volume to increase pressure and to increase concentration.
o
o

Decrease the volume to increase pressure and to increase concentration.  

Explanation:

Increasing the concentration will increase the number of collisions per second and therefore the rate of reaction.

A and B are wrong. You want to decrease the volume.

C is wrong. According to Boyle's Law, you can't decrease both the volume and the pressure at the same time.

yes

ya te ayud espera

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o