AP Chemistry Quiz 1.2 and 1.3

The mass spectrum of the element Sb is most likely represented by which of the following?

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• 
• 
• 

Tags

NGSS.HS-PS1-1

Which of the following elements has the mass spectrum represented above?

• Nb

• Mo

• U

• Cf

A compound is determined to be 43.6% P and the remainder oxygen. What percentage of the compound is Oxygen

• 43.6% oxygen

• 56.4% oxygen

• 61.2% oxygen

• 76.6% oxygen

Convert grams to moles: 43.6% P to moles of P

• 10.84 mol P

• 140.8 mol P

• 1.408 mol P

• 10.408 mol P

What subscript would you place behind K? H?

• 1, 2

• 2, 1

• 2, 2

• 1, 1