[ 563 ] Physical Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • A cleaning service wants to offer a natural alternative to the industrial products it normally uses. Instead of bleach, the company uses a mixture of vinegar and baking soda. When the liquid vinegar and powdered baking soda combine, a bubbly gas is produced. What chemical property is observed? A. flammability B. color change C. volume D. reactivity
