Calculate ΔE for a process in which a system performs 11.59 kJ of work and absorbs 4.41 kJ of heat. Express your answer to two places past the decimal in units of kJ
When 0.705g of sodium metal is added to an excess of hydrochloric acid, 7330 J of heat are produced. What is the enthalpy of the reaction as written? 2Na(s)+2HCl(aq) ⟶2NaCl(aq)+H2(g)
How many grams of CaCl2 are produced when 7.00 moles of HCl react with excess Ca(NO3)2? Ca(NO3)2 + 2HCl → CaCl2 + 2HNO3
all i need is how many grams of CaCl2 are produced when 7 moles of HCl react with excess Ca(NO3)2thanks in advance!
Draw a three repeat unit portion of a polymer chain of PVC.
Polyvinyl chloride (PVC) is the third most widely produced plastic in the world.
A cylinder is found to have a total pressure of 1519.5kPa. If there were 2.0 moles of oxygen, 5.0 moles of He, and 7.0 moles of nitrogen, what would the partial pressure of each be?
Calculate the volume of oxygen needed for complete combustion of ethene. Show your work.
When ethene, C2H4 (g), is completely combusted, carbon dioxide, CO2(g), and water vapor, H2O(g), are produced according to the following balanced equation: C2H4 (g) + 3 O2 (g) → 2 CO2 (g) + 2... more
If 1.4 L of nitrogen reacted, calculate the volume of hydrogen gas needed to react. Show your work.
ogen gas reacts with hydrogen gas to form ammonia according to the equation: N2 (g) + 3 H2 (g) → 2 NH3 (g)