Question 9
In this investigation, calcium is placed in cold water using tongs. A lighted splint is held near the mouth of the test tube, the mixture is left for five minutes, and a few drops of Universal Indicator are added. Wear safety goggles and gloves; perform the gas test only under the teacher’s supervision.
In this investigation, you did the lighted splint test in step 3. Which gas does this test identify? Circle the correct answer.
oxygen; hydrogen; carbon dioxide
In this investigation, you did the lighted splint test in step 3. Which gas does this test identify? Circle the correct answer.
oxygen; hydrogen; carbon dioxide
