23
QuizMultiple Choice
Unit Test
Question 23 of 25 • PA-Physical Science A
The chemical equation below shows the reaction between tin (Sn) and hydrogen fluoride (HF).Sn + 2HF SnF2 + H2The molar mass of HF is 20.01 g/mol. How many moles of Sn are required to react completely with 40 g of HF?
Answer
A
1 moleB
2 molesC
3 molesD
4 moles