Answer:
Pushing the plunger reduces the volume and forces particles closer together. The particles inside the bubble are pushed into a smaller volume, so the plastic surrounding them gets smaller (crumples) to surround the smaller volume. 2.
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Reactants + Energy → Products. Note: ΔH represents the change in energy. In endothermic reactions, the temperature of the products is typically lower than the temperature of the reactants. ... The energy needed for the reaction to take place comes from the water, which gets colder as the reaction proceeds.
The human eye can detect light at wavelengths between 400 to 900 nanometers. That is why we call this part of the electromagnetic spectrum visible light.