Answer:
For the cardboard column the 4 u DIDNT answer in order r Y Y N N
And for the Topaz column the ones in order that u DIDN'T answer are N Y Y
Explanation:
Cardboard is a solid and is inorganic but not naturally occurring or a mineral.
Topaz is not inorganic but is naturally occurring is a crystalline structure and is a mineral
First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst. hope this helps :)
