Use the drop-down menus to compete the sentences.

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+

When a chemical spill has occurred on your clothes you should 1. scream for 2. run under the shower and turn it on 3. use the eye wash station 4. grab the first aid kit