6th Grade Science

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6th Grade Science Mrs. Atkinson Understanding
Chemical Equations
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• Before you begin
• Sharpen your pencil
• Get the worksheet for this lesson
• Sit up straight and prepare to learn!

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• NaCl
• How many different elements are there?
• two
• What are the elements present?
• Na and Cl
• How many atoms of Na are present?
• 1
• How many atoms of Cl are present?
• 1

4

• MgBr2
• How many different elements are there?
• two
• What are the elements present?
• Mg and Br
• How many atoms of Mg are present?
• 1
• How many atoms of Br are present?
• 2

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• Na2S
• How many different elements are there?
• two
• What are the elements present?
• Na (Sodium) and S (Sulfur)
• How many atoms of Na are present?
• 2
• How many atoms s of S are present?
• 1

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• Na3PO4
• How many different elements are there?
• THREE
• What are the elements present?
• Na (Sodium) and P (Phosphorus) and O (Oxygen)
• How many atoms of Na are present?
• 3
• How many atoms of P are present?
• 1
• How many atoms of O are present?
• 4

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• KOH
• How many different elements are there?
• THREE
• What are the elements present?
• K (Potassium) and O (Oxygen and H (Hydrogen)
• How many atoms of K are present?
• 1
• How many atoms of O are present?
• 1
• How many atoms of H are present?
• 1

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• RbNO3
• How many different elements are there?
• THREE
• What are the elements present?
• R (Rubidium) and N (Nitrogen) and O (Oxygen)
• How many atoms of Rb are present?
• 1
• How many atoms of N are present?
• 1
• How many atoms of O are present?
• 3

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• 2 PbSO4
• How many different elements are there?
• THREE
• What are the elements present?
• Pb and S and O
• How many atoms of Pb are present?
• 2
• How many atoms of S are present?
• 2
• How many atoms of O are present?
• 8

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• Na3PO4 3 KOH
• How many different elements are there?
• Five
• What are the elements present?
• Na and P and O and K and H
• How many atoms Na are present?
• 3
• How many atoms of P are present?
• 1
• How many atoms of O are present?
• 7
• How many atoms of K are present?
• 3
• How many atoms of H are present?
• 3

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