Question

dev is heating a substance in a beaker but leaves the flame unattended to check his phone. what should dev do to correct his unsafe behavior? he should quickly finish checking his phone and then return to the flame. he should stay near the flame at all times and never leave it unattended during an experiment. he should stop the experiment to check his phone and make up the data later. he should leave the flame on as long as the experiment is almost done.

Explanation:

In a scientific experiment, leaving a flame unattended is a safety - hazard. One should always stay near the flame during an experiment to prevent accidents like fires or spills. Making up data is unethical in science, and leaving the flame on even if the experiment is almost done without supervision is still risky.

Answer:

He should stay near the flame at all times and never leave it unattended during an experiment.