subject
Chemistry, 30.08.2019 22:00 logan12345677885675

When heated a sample consisting of only caco3 and mgco3 yields a mixture of cao and mgo. if the weight of the combined oxides is equal to 51.00% of the initial sample weight, calculate the per cent of caco3 and mgco3 in the sample. (12 m.)

ansver
Answers: 3

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 21:00, yousifgorgees101
The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.
Answers: 1
image
Chemistry, 22.06.2019 05:00, happy121906
Which position represents spring in the southern hemisphere? a) b) c) d)
Answers: 2
image
Chemistry, 22.06.2019 07:00, chloe9869
Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li
Answers: 1
image
Chemistry, 22.06.2019 07:30, gwenparks
Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1
Answers: 1
You know the right answer?
When heated a sample consisting of only caco3 and mgco3 yields a mixture of cao and mgo. if the weig...

Questions in other subjects:

Konu
Mathematics, 17.12.2020 23:40