ELD Warm-Up

ELD Warm-Up

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Mr. Eng- Chem I

The next 5 questions will use the following reaction: ​

sodium phosphate plus calcium chloride yields calcium phosphate and sodium chloride

​Write the complete balanced equation in your notebook first!

Multiple Choice

sodium phosphate plus calcium chloride yields calcium phosphate and sodium chloride. What is the compound that is solid?

• sodium phosphate

• calcium chloride

• calcium phosphate

• sodium chloride

Multiple Choice

sodium phosphate plus calcium chloride yields calcium phosphate and sodium chloride. What is the mole ratio in the order stated?

• 3:2:1:6

• 2:3:6:1

• 2:2:1:6

• 2:3:1:6

Multiple Choice

sodium phosphate plus calcium chloride yields calcium phosphate and sodium chloride. What is the ratio of sodium phosphate consumed to sodium chloride produced?

• 2:6

• 3:6

• 1:6

• 2:3

Multiple Choice

sodium phosphate plus calcium chloride yields calcium phosphate and sodium chloride. How many moles of sodium phosphate are needed to make 12.0 moles of calcium phosphate?

• 24.0 moles

• 12.0 moles

• 9.0 moles

• 18.0 moles

Multiple Choice

sodium phosphate plus calcium chloride yields calcium phosphate and sodium chloride. How many moles of calcium chloride are needed to make 12.0 moles of calcium phosphate?

• 18.0 moles

• 24.0 moles

• 12.0 moles

• 36.0 moles

Open Ended

Mole ratios can be used to prove the Law of Conservation of Mass. Explain how using an example.

You are Finished!

Get Worksheet 6-2 from Mr. Eng and begin working on it until you get your instructions for the day!

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