Chemistry, 22.10.2020 19:01 asiaemerlle
When a ball bounces, it has changing amounts of potential and kinetic energy. Eventually the ball will stop bouncing and come to rest. Which of the following best describes why the ball stops bouncing?
The ball’s energy is transformed into chemical energy.
The ball’s energy gets transformed to heat and sound energy.
The mass of the ball is too small to allow the ball to continue its own motion.
The pull of gravity is stronger than the energy in the ball, which makes the ball stop bouncing.
Answers: 2
Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
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Chemistry, 23.06.2019 15:30
Among these processes, which is the slowest chemical reaction? a. digesting food b. boiling an egg c. tarnishing of silver d. melting of a glacier
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Chemistry, 23.06.2019 23:30
If 2 molecules of one reactant combine with 5 molecules of another to produce 3 molecules of a product then which of the following is the correct representation of the reaction? a. 2a + 3b = 5c b. a2 + b5 = c3 c. a2 + b3 = c5 d. 2a + 5b = 3c
Answers: 3
When a ball bounces, it has changing amounts of potential and kinetic energy. Eventually the ball wi...
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