It's about classifying matter... chemistry ?

Question

i have this project and we were instructed to classify the following substances into the classification of matter. Like, telling if this substance is an element or compund. if so, is the compund organic or inorganic; if it's an element is it a metal, alloy or a non- metal. Having hard time here.

some of them i have answered. But here's the list that i haven't answered:

1. oyster shell powder

2. spinach concentrate

3. maltodextrine

4. microcrystalline cellulose

5. ferrous fumarate

6. sodium carboxmethylcellulose

7. acacia

8. hydroxylpropyl methylcellulose

9. silicon dioxide

10. magnesium stearate

...hard huh? anyway, it's a challenge right?... agghhh.. i'm having a headache already!

Answer 1

1. oyster shell powder - this is a combination of organic and inorganic compounds. Example: calcium carbonate (inorganic) and amino acids (organic).

2. spinach concentrate - organic compound

3. maltodextrine - organic compound

4. microcrystalline cellulose - organic compound

5. ferrous fumarate - organic compound

6. sodium carboxymethylcellulose - organic compound

7. acacia - acacia per se is not a compound but it is made up of naturally occurring organic compounds

8. hydroxylpropyl methylcellulose - organic compound

9. silicon dioxide - inorganic compound

10. magnesium stearate - organic compound

Answer 2

1. oyster shell powder - compound likely organic, non-metal

2. spinach concentrate - compound, organic, non-metal

3. maltodextrine - compound, organic, non-metal

4. microcrystalline cellulose - compound, organic, non-metal

5. ferrous fumarate compound, inorganic, metal,

Those are the only I know for sure.