Which of the following is not a reason for resisting change??

Percent strength represents how many grams of active ingredient are in:

A) 1 mL. B) 10 mL. C) 100 mL. D) 1,000 mL.

Water as a cooling agent must be combined with ___ to be effective on lighter petroleum distillates

A. chemicals B. clean agents C. carbon dioxide D. foam additives