Pogil Chemistry ((free)) -

Alex looked again. “Oh! I missed that second molecule entirely. You’re right. So it’s two on the left, four on the right.”

“Easy,” Alex muttered, counting quickly. “Two on the left. Three on the right. That’s wrong, right? That can’t be right.”

“So it’s a puzzle,” Jordan said, grinning. “We change one thing, check another.”

Alex took a breath. “Okay. Show me which oxygen atoms you’re counting on the right.”

Alex wanted to say “No, it’s not balanced,” and move on. But Jordan stopped.

Jordan leaned over. “Wait, I got two on the left, but four on the right. How did you get three?”