Answers: 3
Chemistry, 22.06.2019 23:00, maddyleighanne
Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry
Answers: 3
Chemistry, 23.06.2019 06:30, aurikmah2005
Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.
Answers: 1
Chemistry, 23.06.2019 07:00, jboii11
An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o
Answers: 2
Chemistry, 23.06.2019 16:20, chimwim8347
Select the correct answer. what is the wavelength of radio waves? a. between 1 x 10-3 and 1 x 10-1 meters b. less than 1 x 10-11 meters c. more than 1 x 10-1 meters d. between 1 x 10-8 - 4 x 10-7 meters e. between 4 x 10-7 - 7 x 10-7 meters
Answers: 3
Acup of hot water cannot melt a large block of ice. however the same block melts when dropped into a...
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