A substance is a base if it has a pH value greater than___
PLEASE ANSWER ASAP...
Chemistry, 10.10.2021 19:10 ashleyprescot05
A substance is a base if it has a pH value greater than___
PLEASE ANSWER ASAP
Answers: 2
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 23.06.2019 03:00
The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.
Answers: 3
Chemistry, 23.06.2019 17:30
Describe the type of force which exists between particles in an ideal gas. explain why this type of force exists between the particles.
Answers: 3
Health, 24.09.2019 15:30
Physics, 24.09.2019 15:30
Chemistry, 24.09.2019 15:30
Mathematics, 24.09.2019 15:30
Health, 24.09.2019 15:30
Chemistry, 24.09.2019 15:30
Social Studies, 24.09.2019 15:30
History, 24.09.2019 15:30
Mathematics, 24.09.2019 15:30
Mathematics, 24.09.2019 15:30