8.6 E Check #1

What is the law that states mass is conserved in a chemical reaction?

• Law of Conservation of Energy

• Law of Conservation of Mass

• Law of Conservation of Momentum

• Law of Conservation of Charge

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TEKS.SCI.8.6E

• Yes

• No

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TEKS.SCI.8.6E

Explain why mass is conserved in the chemical reaction of photosynthesis.

• Because energy is created

• Because atoms are rearranged, not created or destroyed

• Because mass is lost as heat

• Because new atoms are formed

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TEKS.SCI.8.6E

According to the Law of Conservation of Mass, which statement is true?

• the mass of the products must be less than the reactants

• the mass of the products must be greater than the reactants

• the mass of the products and reactants must be equal (the same)

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TEKS.SCI.8.6E

What would be the missing mass for 2H₂O?

• 80 g

• 36 g

• 16 g

• 124 g

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TEKS.SCI.8.6E

How many grams of Oxygen were used in the equation?

• 125 g
• 100 g
• 200 g
• 150 g

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TEKS.SCI.8.6E

How does the conservation of mass relate to the rearrangement of atoms in a chemical reaction?

• Atoms are destroyed, leading to mass loss

• Atoms are rearranged, maintaining the same mass

• Atoms are created, increasing mass

• Atoms are unchanged, but mass varies

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TEKS.SCI.8.6E

What is the balanced chemical equation for photosynthesis?

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TEKS.SCI.8.6E

• 6 on the left, 12 on the right

• 12 on the left, 12 on the right

• 18 on the left, 18 on the right

• 12 on the left, 6 on the right

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TEKS.SCI.8.6E

Is this equation balanced?

• Yes

• No

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TEKS.SCI.8.6E