Chemistry, 19.12.2019 06:31 Nathaliasmiles
Iron has a density of 7.86 g/cm3 (1 cm3=1 ml). calculate the volume (in dl) of a piece of iron having a mass of 3.26 kg . note that the density is provided in different units of volume and mass than the desired units of volume (dl) and the given units of mass (kg). you will need to express the density in kg/dl (1 cm3 = 1 ml) before calculating the volume for the piece of iron.
Answers: 2
Chemistry, 21.06.2019 15:30
Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.
Answers: 3
Chemistry, 21.06.2019 20:30
14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->
Answers: 2
Chemistry, 21.06.2019 22:20
Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge
Answers: 2
Chemistry, 22.06.2019 06:10
Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.
Answers: 1
Iron has a density of 7.86 g/cm3 (1 cm3=1 ml). calculate the volume (in dl) of a piece of iron havin...
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