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Write an equation for the following reactions. Remember that gases of elements such as oxygen are diatomic (O2). Write the correct formulas of the reactants and products. then correctly balance each equation. a. Potassium and oxygen gas react to form potassium oxide. b. Sodium and water react to form sodium hydroxide and hydrogen gas. c. Iron and oxygen gas react to form iron (III) oxide.
what and how much effect does this have on the measured pressures? What is the effect on the value of?
What volume of methanol is formed if 3.11×1011 of methane at standard atmospheric pressure and 25 is oxidized to methanol
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25 Celcius. The concentration of Cu2+ in one of the half cells is 1.5 * 10-3 M. what is the concentration of Cu2+ in the other half cell?
What is the solubility in moles/liter for copper(II) iodate at 25 oC given a Ksp value of 1.4 x 10-7. Write using scientific notation and use 1 or 2 decimal places (even though this is strictly incorrect!).
How many grams of zinc metal will react completely with 8.2 liters of 3.5 M HCl? Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g)
A 4.50-g sample of LiCl at 25.0C dissovles in 25.0mL of water also at 25.0C. Th final equilibrium temerpature of the resulting solution is 60.8C
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
What is the mole fraction of HO2CCH2CHOHCO2H in this solution suppose you dissolve 2.56 grams of malic acid HO2CCH2CHOHCO2H in 50.0 grams of H 2 O.?
Explain how does unique physical and chemical properties of water contribute to significance of water for life on Earth to survive.
explain the basis of your decision and note if the bond(s) formed are ionic or covalent. a.) sodium and fluorine b.) nitrogen and hydrogen c.) silicon and oxygen d.) chlorine and bromine (please explain in details.)
A solution is prepared by dissolving 179 g sucrose (C12H22O11) in enough water to produce 1.15 L solution. What is the molarity of this solution?
What is the boiling point of a solution that contains 6 moles of KBr in 1000 g of water? (K = 0.512 C/m)
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