Based on charles’s law, which of the following statements is true for an ideal has at a constant pressure and mole amount?
A. The number of collisions is independent of volume
B. The number of collisions decreases with increase in volume
C. Volume is directly proportional to absolute temperature
D. Volume is inversely proportional to absolute temperature

Based on the position vs. time graph which velocity vs. time graph would correspond to the data

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

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