Chemistry, 20.05.2021 21:20 PlzHelpMeOutKam3919
5. True or False: If one thing in a food web is affected, it will only probably affect the organism that directly relies on it for energy. *
1 point
A. True
B. False
Answers: 1
Chemistry, 22.06.2019 03:00
In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?
Answers: 3
Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
Chemistry, 22.06.2019 18:00
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Chemistry, 22.06.2019 19:00
How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.
Answers: 1
5. True or False: If one thing in a food web is affected, it will only probably affect the organism...
Mathematics, 11.10.2021 22:50
Computers and Technology, 11.10.2021 23:00
Social Studies, 11.10.2021 23:00
English, 11.10.2021 23:00
Social Studies, 11.10.2021 23:00
Biology, 11.10.2021 23:00
Physics, 11.10.2021 23:00
World Languages, 11.10.2021 23:00
Mathematics, 11.10.2021 23:00
Social Studies, 11.10.2021 23:00
Biology, 11.10.2021 23:00
English, 11.10.2021 23:00
Computers and Technology, 11.10.2021 23:00
Mathematics, 11.10.2021 23:00
History, 11.10.2021 23:00
English, 11.10.2021 23:00