Because it has no <span> stereogenic carbon centres.</span>
        
             
        
        
        
Yes. A mixture can be made up of just elements without the use of a compound, you can also just use compounds in a mixture without any elements
 
        
             
        
        
        
Answer:
2.86g
Explanation:
Mass of HCl  = 2.87g 
Mass of water  = 3.75g 
Mass of NaCl  = 1.98g 
Unknown: 
Mass of NaOH reacted  = ? 
Solution: 
   The reaction expression is given as: 
            HCl    +   NaOH   →   NaCl   +  H₂O
According to the law of conservation of mass, the mass of reactants and products must be the same. 
    Mass of HCl   +   Mass of NaOH  = Mass of NaCl  +  Mass of H₂O 
       2.87g + Mass of NaOH  = 1.98g + 3.75g 
            Mass of NaOH  = 1.98g + 3.75g - 2.87g  = 2.86g
 
        
             
        
        
        
Answer:
include quartzite and marble
Explanation:
non-foliated rocks are 
1. metamorphic rocks
2. they are formed in the surrounding of igneous rocks 
3. The environmental condition of formation of non-foliated rocks are that temperature is very high
4. pressure is very low but equal from all direction on igneous rocks
5. The constituent material crystalizes to form large rocks in which atoms are tightly and closely packed. Due to this density of these rocks are also higher.
Example of such rocks are
Quartzite : Its  constituent material are mineral quartz and metamorphosed sandstone
Marble : its constituent material are mineral calcite; metamorphosed limestone
Hence, include quartzite and marble is the correct choice.