What acids do when mixed with bases

The answer to “What acids do when mixed with bases” in the New York Times crossword is REACT — a 5-letter word. It most recently appeared in the New York Times crossword on September 13, 2026, a Sunday puzzle, at 71-Down. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.

“What acids do when mixed with bases” answer

REACT (5 letters)

Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is REACT.

What does REACT mean?

Reading the plain dictionary sense of REACT is often the fastest way to see why it answers this clue.

When else has “What acids do when mixed with bases” appeared?

New York Times reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.

September 13, 2026 (most recent) → REACT. We haven't indexed another appearance of this exact clue yet.

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