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- 1. Multiple-choice30 seconds1 pt
Which of the following is an endothermic process?
Burning wood
Reacting an acid and alkali
Reacting magnesium with acid
Dissolving ammonium nitrate in water
- 2. Multiple-choice30 seconds1 pt
Which of the following is true for an exothermic process?
The reactants lose energy to the surroundings
The reaction gets cold
The energy diagram will be as shown
The reaction will have an enthalpy that is positive (+).
- 3. Multiple-choice30 seconds1 pt
Which of the following is true when chemical bonds are broken?
The process is exothermic
Energy is given out
A physical change is occurring
The reaction will have an enthalpy that is positive(+).
- 4. Multiple-choice30 seconds1 pt
Which of the following is true for an exothermic reaction?
Bond breaking involves a bigger energy change than bond making
Bond making involves a bigger energy change than bond breaking
Bond making involves the same energy change as bond breaking
- 5. Multiple-choice30 seconds1 pt
Which of the following is the activation energy:
X
Y
Z
