Question

Arbitrarily mixing two chemicals should

A) be done to gain new information
B) be done only after you finish the scheduled experiment
C) never be done

Answer 1

Arbitrarily mixing two chemicals should never be done as it can lead to unsafe conditions and unpredictable reactions. Laboratory safety protocols and the specific procedural steps must be followed diligently.

Step-by-step explanation:

The question regarding the arbitrary mixing of two chemicals touches on a fundamental aspect of laboratory safety and chemical experimentation protocols. In response to the question, one should never mix chemicals arbitrarily. Experiments in a laboratory setting must be conducted according to specific procedures, and safety guidelines should always be followed.

This includes understanding the safety data for the chemicals in use, following prescribed instructions, adding acid to water (never the reverse), and knowing when a reaction is not expected to occur, as with the 1.0 M NaCl and 1.0 M KBr example where nothing happens upon mixing. Laboratory safety is crucial because incorrect handling of chemicals can lead to dangerous reactions, contamination, or other accidents. Teachers must be informed of any incidents, and tasting or touching chemicals or eating and drinking in the lab is strictly prohibited.