A fifth-grade science class puts half of a white tablet in a test tube with 10 milliliters (mL) of water at 21°C (70°F). The tablet bubbles rapidly for three minutes until it is gone. Students record the final temperaturo at 20°C (637)
Which choice best identifies evidence that a chemical reaction occurred?
tablet was white
tablet broke in hall
tablet dissolved in the water
change in water temperature

Question

03-02-2021
Chemistry

Answered

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A fifth-grade science class puts half of a white tablet in a test tube with 10 milliliters (mL) of water at 21°C (70°F). The tablet bubbles rapidly for three minutes until it is gone. Students record the final temperaturo at 20°C (637)
Which choice best identifies evidence that a chemical reaction occurred?
tablet was white
tablet broke in hall
tablet dissolved in the water
change in water temperature

Sagot :

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