Chemistry, 29.01.2020 08:42, krystinayagel013

Revision questions
1. a human hair is about 50 pm thick. a pet flea is about 1 mm in size. how
many times smaller is the thickness of a human hair than a flea?

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 00:30, Bryanguzman2004

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

Answers: 3

continue

Chemistry, 22.06.2019 18:00, jeepjose58

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

continue

Chemistry, 22.06.2019 22:00, moran14

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope

Answers: 1

continue

Chemistry, 22.06.2019 22:00, aliciaa101

Ill give u brainliest pls how is mass of carbon conserved during cellular respiration

Answers: 1

continue

Do you know the correct answer?

Revision questions
1. a human hair is about 50 pm thick. a pet flea is about 1 mm in size. how...