Chemistry, 28.08.2021 02:20 kendrabrown41
What is the density of a cube of water measuring 2cmX4cmX1cm, with a mass of 8g?
Answers: 2
Chemistry, 21.06.2019 22:00
Afamily is one another name for a group on the table of elements.
Answers: 1
Chemistry, 21.06.2019 22:30
Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.
Answers: 1
Chemistry, 22.06.2019 01:50
7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '
Answers: 1
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
What is the density of a cube of water measuring 2cmX4cmX1cm, with a mass of 8g?...
Health, 26.09.2019 20:00
History, 26.09.2019 20:00
Physics, 26.09.2019 20:00
History, 26.09.2019 20:00
Physics, 26.09.2019 20:00
Health, 26.09.2019 20:00
Computers and Technology, 26.09.2019 20:00
History, 26.09.2019 20:00
Mathematics, 26.09.2019 20:00
History, 26.09.2019 20:00
History, 26.09.2019 20:00
Social Studies, 26.09.2019 20:00
Biology, 26.09.2019 20:00