Chemistry, 22.02.2021 23:00 marquetter7689
How many molecules are in 83.2 g of chlorine gas (C12)?
Answers: 1
Chemistry, 22.06.2019 08:00
Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next
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Chemistry, 23.06.2019 12:30
0.070g of hydride of carbon occupies 56cm^3 at s.t.p when vaporized and contained 14.29% by mass of hydrogen.what is the formula for the hydrocarbon
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Chemistry, 23.06.2019 16:50
How can a scientist assess whether a pure niobium (nb) sample is responsible for contaminating the lab with radioactivity? test the niobium sample to see whether it now contains other elements.test the niobium sample for the presence of niobium oxide compounds.heat the niobium, and see if the level of radioactivity in the lab increases.place the niobium under pressure, and see if the level of radioactivity in the lab increases.
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Chemistry, 23.06.2019 19:30
The total amount of fresh water on earth is estimated to be 3.73 x 10^8 km^3. what is this volume in cubic meters? in cubic feet?
Answers: 1
How many molecules are in 83.2 g of chlorine gas (C12)?...
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