We read your photo as:

State a sign, visible in Fig. 4.1, that a reaction is taking place.

Chemistry

ScanSolve AI Answer

Answer

a

Bubbles\text{Bubbles}

Step-by-step solution

6 steps

Part a

The sign visible in Fig. 4.1 that a reaction is taking place is the formation of bubbles in the reaction mixture.

Bubbles\boxed{\text{Bubbles}}

Part b· 3 steps

  1. For the first experiment, use one tablet whole.

  2. For the second experiment, crush the other tablet into a fine powder.

  3. The apparatus needed for crushing is a pestle and mortar.

Part c· 3 steps

  1. Measure the volume of gas collected in the gas syringe.

  2. Measure the time taken for the gas to be collected using the clock.

  3. Repeat these measurements at regular time intervals to track the progress of the reaction.

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