What is the name of the ionic compound CaO?
calcium oxygen
calcium oxide
calcium(I) oxi...
Answers: 2
Chemistry, 22.06.2019 13:30
Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves
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Chemistry, 22.06.2019 14:30
The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
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Chemistry, 22.06.2019 14:50
Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.
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Chemistry, 22.06.2019 21:00
As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.
Answers: 1
Mathematics, 02.12.2020 07:10
Mathematics, 02.12.2020 07:10
Chemistry, 02.12.2020 07:10
Mathematics, 02.12.2020 07:10
Mathematics, 02.12.2020 07:10
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History, 02.12.2020 07:10