Chemistry, 17.11.2019 15:31 janinecastillo01
Lead is found in earth’s crust in several different lead ores. suppose a certain rock is composed of 38.0% pbs (galena), 25.0% pbco3 (cerussite), and 17.4% pbso4 (anglesite). the remainder of the rock is composed of substances that don’t contain lead. how much of this rock (in kg) must be processed to obtain 5.8 metric tons of lead? (a metric ton is 1000 kg.)
express your answer using two significant figures.
Answers: 3
Chemistry, 22.06.2019 04:30
Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery
Answers: 3
Chemistry, 22.06.2019 11:30
If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.
Answers: 3
Chemistry, 22.06.2019 16:20
When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa
Answers: 1
Lead is found in earth’s crust in several different lead ores. suppose a certain rock is composed of...
English, 27.08.2019 02:40
History, 27.08.2019 02:40
Social Studies, 27.08.2019 02:40
English, 27.08.2019 02:40
Social Studies, 27.08.2019 02:40
History, 27.08.2019 02:40
Mathematics, 27.08.2019 02:40
Spanish, 27.08.2019 02:40
History, 27.08.2019 02:40
Mathematics, 27.08.2019 02:40
Computers and Technology, 27.08.2019 02:40
Physics, 27.08.2019 02:40
Computers and Technology, 27.08.2019 02:40
History, 27.08.2019 02:40