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Explain how the existence of ions relates to the number of electrons present in atoms of an element? (A. P.E. X)
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Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
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Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
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Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?
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Explain how the existence of ions relates to the number of electrons present in atoms of an element?...
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