Classmates
Who is the oldest
Amirah
Is an ice cube melting endothermic or exothermic
endothermic
This law allows you to calculate the enthalpy change of a reaction by combining other reactions
Hess's Law
This symbol represents the change in enthalpy during a reaction
Delta H
This device is used to measure the heat change during a chemical reaction.
Calorimeter
Who is the youngest
Gary
What is the electron configuration of H
1s1
If you reverse a reaction while using Hess's Law what happens to the sign of the enthalpy(Delta H)?
it changes to the opposite sign
When Delta H is negative, the reaction is described as this type.
Exothermic
This quantity in calorimetry refers to the total energy absorbed or released as ___
heat
Who has moved 3 time before
Dream
Is the pH of milk basic, acidic, slightly acidic or neutral
slightly acidic
To find the enthalpy of a reaction, you can add or subtract the enthalpies of other reactions. What must you do to the equations first?
Balance them
When Delta H is positive, energy is absorbed. What is the name of this type of reaction
Endodermic
This property of a substance determines how much heat is needed to raise the temperature of one gram of the substance by one degree celsius
heat capacity
Who won a most inspirational award
Amirah
What is the pH value of distilled water
7
The total enthalpy change for a reaction depends on the initial and final states. what does it NOT depend on?
The pathway or steps taken
Delta H can be measured in these units of energy
Kilojoules (kJ) or Joules(J)
If the temperature of water in a calorimeter increases, the reaction is this type
exothermic
Who doesn't have a spleen
Dream
What type of intermolecular forces is the strongest
Hydrogen Bonding
Using Hess's Law, you combine these to calculate the overall enthalpy change
individual reaction enthalpies
The formula for Delta H in a reaction is the sum of the enthalpies of these minus the enthalpies of these
the products minus reactants
This term describes the heat change when one mole of a substance is burned in a calorimeter under standard conditions
heat of combustion