Answer:
First one is: ammonia
Second one is: calcium hydroxide
Explanation:
For metals (lithium) reactivity increases down a group and from right to left across a period. So lithium is not that reactive. I think ♀️
think yesu ckers isn't an isomer
Answer:
Sulfer
Explanation:
We just took the lesson lol
Since the teacher has said to use quantitative observation, density is the easiest measurement to make. Aluminum has a density of 2.7 g/mL. Brass has a density of 8.73 g/mL. Copper has a density of 8.96 g/mL. As long as the mass and volume measurements are accurate (water displacement can be used for volume measurements), the resulting density values can be distinguished.
It may be possible to distinguish these three metals visually, based on color, but the instructions have stated to use quantitative observation.