Afirework exploding would be an example of a(n) question 23 options: exothermic reaction endothermic reaction physical change formation of a precipitate

Answer is: Exothermic reaction.

Exploding fireworks is chemical change (chemical reaction), because new substances are formed, the atoms are rearranged and the reaction is followed by an energy change (energy is released).

There are two types of reaction: endothermic reaction (chemical reaction that absorbs more energy than it releases) and exothermic reaction (chemical reaction that releases more energy than it absorbs).

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.