Chemistry, 27.07.2019 11:30 billy12008
Combustion analysis of an unknown compound provides the following data: 73.5 grams c, 4.20 grams h, and 72.3 grams cl. what is the percent composition of each element in this compound? 73.5% c, 4.20% h, 72.3% cl 48.0% c, 3.00% h, 50.0% cl 17.5% c, 1.00% h, 17.2% cl 49.0% c, 2.80% h, 48.2% cl
Answers: 1
Chemistry, 22.06.2019 06:40
Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.
Answers: 3
Chemistry, 22.06.2019 07:00
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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Chemistry, 22.06.2019 10:00
What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18
Answers: 1
Chemistry, 22.06.2019 11:00
Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation
Answers: 1
Combustion analysis of an unknown compound provides the following data: 73.5 grams c, 4.20 grams h,...
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