C. greater than 5 ntifying Minerals READIN...
e or False?
True or False?
1. You can identify a mineral by its color and nothing else.
_2. You can use Mohs' hardness scale and definitely tell which mineral you have.
_3. Minerals can be identified by many different properties.
4. The Mohs' scale is not very useful for identifying minerals,
5. All rocks are made of minerals,
_6. There is a way to tell if you have found a real gold nugget or a piece of fool's gold.
7. You can tell if you found a diamond because it could cut glass.
8. If you have a white mineral that you can pinch it into a powder, you know it's talc.
9. The steak a mineral leaves is always the same color as the mineral itself.
4 of 4
O

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

confused

confused             hewdejdnjnjsnd

idk what is it? is this a question that you know the answer or u dont

explanation:

a