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When 3.41 g of P4 is burned, 86.1 kJ of thermal energy is evolved at constant pressure. What is the molar enthalpy of combustion of P4?
Strontium carbonate decomposes upon heating to strontium oxide and carbon dioxide. Calculate the number of g of carbon dioxide produced by heating 10.7 g of strontium.
A graduated cylinder contains 25.0 of water. What is the new water level after 34.2 of silver metal with a density of 10.5 is submerged in the water.
When 2.00 moles of H2O react, how many grams of NH3 are produced?
The concentration of oxygen, O2, dissolved in a sample of seawater is 6.22 ppm by mass (concentration 1 ppm - 1 part per million - means
Offer a brief explanation of why bandgaps for octet p-block semiconductors (1) decrease with increasing average principal quantum number
how many liters of o2 can be made from 342g H2o2 if the density of o2 is 1.428g.
Determine the molarity of a solution of the weak acid HCl)2; Ka = 1.10*10^-2 if it has a ph of 1.25.
what is the theorectical yield of disulfure chloride? what mass of the excess reactant reamains when the reaction is completed?
How many grams of acetylene are produced by adding water to 5.0 grams CaC2
Write a chemical equation describing the condensation process for CO2 and a chemical equation describing the freezing
What mass of carbon reacts completely with 17.8 grams of SiO2 according to the following equation? SiO2 (s) + 2C (s) → SiC (s) + 2CO (g)
what is the freezing point of an aqueous solution that has 25.0 g of glucose, C6H12O6 per 100.0g H2O (Kf=186C/M)
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