Chemistry, 03.07.2019 16:00 danielzgame
Which property is typical of a covalent compound? a. they are extremely hard solids. b. they have low melting and boiling points. c. they conduct electricity. d. they have rigid crystal structures. e. they exist only as gases and liquids.
Answers: 2
Chemistry, 21.06.2019 17:00
Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects
Answers: 2
Chemistry, 22.06.2019 09:00
Particles vibrate in a rigid structure and do not move relative to their neighbors.
Answers: 1
Chemistry, 22.06.2019 19:30
Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?
Answers: 2
Which property is typical of a covalent compound? a. they are extremely hard solids. b. they have l...
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