Bond energy and exo/endo reactions

Front

If a chemical reaction is EXOTHERMIC, the temperature would...

Back

increase

Front

In an endothermic reaction, is the system releasing energy?

Back

false

Front

Is the combustion of gasoline endothermic or exothermic?

Back

exothermic

Front

During an endothermic reaction in a beaker, if we are part of the surroundings and touched the beaker, it would feel _______.

Back

cold

Front

Temperature change when a student mixed two chemicals: Initial temperature = 25°C, Final temperature = 18°C.

Back

It decreases by 7°C.

Front

A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 °C. The temperature after the reaction was 18 °C. Which of the following is true? Options: the reaction is a neutralisation reaction, the reaction is exothermic, the reaction is endothermic.

Back

the reaction is endothermic

Front

If the energy required to break the bonds is greater than the energy given out by making new bonds, the reaction is...

Back

endothermic

Front

If the energy required to break the bonds is less than the energy given out by making new bonds, the reaction is

Back

exothermic

Front

Why do sherbet sweets candy fizz in your mouth and make your tongue feel cold?

Back

An endothermic reaction is happening

Front

Which letter corresponds to the energy of the products?

Back

D