Me with this question i cannot get it wrong and i will get in trouble if i do flames are the heat and light energy that is release when the chemical bonds in a substance are broken. what provides the chemical potential energy in a candle? a. spark b. heat c. wax d. water

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

What does the symbol (–hfus) indicate in a phase change?

In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.