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Q23: What is the atomic number for tin?<br>A)47.87<br>B)50<br>C)118.71<br>D)22
Q31: Which of the following is the smallest
Q38: How many electrons are in the ion
Q47: Crude oil is an example of<br>A)a compound.<br>B)an
Q69: Which of the following is a molecular
Q89: What happens to the density of a
Q101: Place the following types of electromagnetic radiation
Q116: If 102.7 g of tin is mixed
Q127: Lead ions can be precipitated from
Q160: Define matter.