It’s is a pure substance because nothing is mixed with it and a molecule gas because it’s is a gas and it’s by its self
Answer:
Acceleration is the rate of change in velocity
<h3><u>Answer;</u></h3>
B) a system is a group of objects analyzed as one unit
C) energy they moves across system boundaries is conserved
<h3><u>Explanation;</u></h3>
- System is a group of objects analyzed as one unit
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- An open system is a system that freely exchanges energy and matter with its surroundings.
- A closed system is a system that exchanges only energy with its surroundings, not matter. An isolated system does not exchange energy or matter with its surroundings.
Answer:
red litmus paper change into blue when it is dipped into Pineapple juice.
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