WVGSA Grade 8 Science Practice Questions - West Virginia General Summative Assessment Grade 8 Science Exam

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Students measure the temperature of two chemical reactions over 5 minutes: • Reaction A: Initial Temp = 22°C, Final Temp = 34°C • Reaction B: Initial Temp = 22°C, Final Temp = 14°C Which classification correctly identifies Reactions A and B?

Reaction A is endothermic; Reaction B is exothermic Reaction A is exothermic; Reaction B is endothermic Both reactions are exothermic Both reactions are physical changes

Correct Answer:

Reaction A is exothermic; Reaction B is endothermic

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