Answer:
Oxygen gas causes a glowing splint to continue burning. If you observe a gas forming, test for its identity by inserting a glowing wood splint into the mouth of the test tube. Light the splint and then blow out the flame, leaving a glow.
Answer: Debería ser 7
Step-by-step explanation:
D
4x2=8
5x2=10
6x2=12
This answer is the closest to 12 but it doesn't go over 12, so this is less than or equal to 12
9/0
