The Wrong Chemistry
“She heard Professor Maszak yell to Sara to protect herself as pieces of glass clattered to the floor. Sara gave a little cry, and Nancy heard her footsteps as she rushed out of the room.
When Nancy opened her eyes, the professor was staring after Sara with a rueful expression. He bent to pick up the larger fragments from the floor.
Nancy bent down to help him. “What was that?” she asked.
Maszak sighed. “Nothing. A stupid mistake.”
Nancy arched an eyebrow.
“Sara is supervising two class experime...nts at once. She wasn’t paying attention, and she dropped part of one into part of the other. They didn’t agree with each other.”
“To put it mildly,” Nancy murmured. “Shouldn’t she take better precautions with explosives?”
“Neither is explosive by itself. The powder is zinc,” the professor said. “And there was hydrochloric acid in the beaker.” The professor was silent for a moment, studying the glass fragments nestled in his palm. “But you’re right. They shouldn’t have been near each other.MoreLess
When Nancy opened her eyes, the professor was staring after Sara with a rueful expression. He bent to pick up the larger fragments from the floor.
Nancy bent down to help him. “What was that?” she asked.
Maszak sighed. “Nothing. A stupid mistake.”
Nancy arched an eyebrow.
“Sara is supervising two class experime...nts at once. She wasn’t paying attention, and she dropped part of one into part of the other. They didn’t agree with each other.”
“To put it mildly,” Nancy murmured. “Shouldn’t she take better precautions with explosives?”
“Neither is explosive by itself. The powder is zinc,” the professor said. “And there was hydrochloric acid in the beaker.” The professor was silent for a moment, studying the glass fragments nestled in his palm. “But you’re right. They shouldn’t have been near each other.MoreLess
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