Calculate change in enthalpy for the following reactions
Calculate change in enthalpy for the following reactions:4 Na + O2 yields 2Na2O2Na + 2H2O yields 2NaOH + H22Na CO2 yields Na2O + CO
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Write and balance the double replacement reaction of sodium hydroxide and oxalic acid(H2C2O4). How many moles of base are needed to neutralize one mole of acid? (H2C2O4 <=> 2H^+ + C2O4^2-)
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The final temperature of the mixture is 30.4?C. What is the specific heat capacity of the metal? Assume that there is no energy lost to the surroundings.
A physics student stands on a bathroom scale in an elevator which is not moving. The scale reads 620 N. The elevator then accelerates downward at 1.36 m/s2. What does the scale read during this acceleration?
Calculate change in enthalpy for the following reactions:
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write a balanced formation equation at standard conditions for the compound HI.
A modern chealting agent used for this purpose is succimer (C4H6O4S2). What minimum mass of succimer in miligrams is needed to bind all of the lead in a patients bloodstream?
What mass of natural gas {rm{(CH}}_4 ) must you burn to emit 271 kJ of heat?
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