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State is the Lewis electron dot structure for SeO2? O--Se--O with one of the oxygens double bonded to Se as well as 6 electrons around the single bonded O and 4 electrons around the double bonded O and 2 electrons on Se. what is the right structure?
The reaction of magnesium metal with HCl yields hydrogen gas and magnesium chloride. What is the volume, in liters, of the gas formed at 736 torr and 18 oC from 4.49 g of Mg in excess HCl?
A 40.2 L volume of methane gas is heated from 25°C to 86°C at constant pressure. What is the final volume of the gas?
A sample of helium gas has a volume of 8.23 L at 258.8 K and 2.049 atm. How many helium molecules does it contain
What is the theoretical yield in grams of CuS for the following reaction given that you start with 15.5 g of Na2S and 12.1 g CuSO4? Reaction: Na2S + CuSO4 ? Na2SO4 + CuS
Only very pure phosphoric acid is used in food products. An older term for soft drinks is phosphates. This name was applied because pure phosphoric acid was used to produce a tart taste in some beverages and to help dissolve the other ingredients...
Considering the balanced chemical equation at the beginning of Section 4.2, why is it incorrect to say that if we burn 2 kg of octane, we would get 16 kg of CO2 as a product
Determine what volume of 1.0 mol/L solution of Copper monosulfide can be made from 23.9 grams of Copper monosulfide?
calculate the number of joules required to melt 43.6g of benzene at 5.5 degrees celsius?nbspthe heat of fusion for
Why is it not possible to use ethanol to extract an organic compound from water even though most organics are more soluble in ethanol than in water
considering the given equation as 2fe2o3s 3cs rarr 4fes 3co2g and compute w when 181 grams of iron iii oxide mm
The concentration of SO4 is .5 M in a certain solution of Al2(SO4)3. what is the molar concentration of Al in the solution
suppose that a cars starter draws 225A of current for 6.3 s to start the car. what mass of Pb is oxidized in the lead-acid battery to supply the electricity?(in grams)
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