Chemistry, 29.05.2021 04:30 triplejjj964

Which of the following is NOT a sign of a chemical change? Mixing two white powders in water and the resulting mixture turns red in color.
Steam collecting on the lid of a pot of boiling water.
Cracking a light stick which starts to glow.
a
Putting drops of water on calcium carbonate and watching bubbles appear.

Which of the following is NOT a sign of a chemical change?

Mixing two white powders in water and

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Which of the following is NOT a sign of a chemical change? Mixing two white powders in water and th...

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