Answer: 2.7 centimeters long.
Explanation: count from starting at the beginning of the number on the ruler "2" and counted up until the end of the blue object. Counted 7 lines, so, 2.7 is the correct answer.
Potential energy would increase because you are compressing the spring
Answer:
D
Explanation:
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Ca + Cl2 = CaCl₂
A synthesis <span>reaction.</span>
