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what are the three categories of the period table?

metal, non metal, and metalloids

what are 5 events that tell you that a physical change has occurs?

bubbles,sound, color,burn, and Oder.

what you call group 17?

hole gens

what you call group 18?

Noble Gases

what you call group 1?

alkali metal

what does the law of conservation said?

The law of conservation of mass.

what is the big number in front of an element ?

coefficient

what is the formula for speed?

speed= distance/time

what is the formula for acceleration ?

final speed/time= initial speed

what is the formula for velocity?

velocity+ displacement/ time

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