The two notations that represent isotopes of the same element is the one that represented in option 1
The lower number is the number of protons while the upper number is the atomic weight
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Answer:
Explanation:
8.61+5.779 = 14.389 = 1.4389 × 10^1
25 - 12.5 = 1.25 x 10^1
56.35 / 13.2 = 4.2689
 
        
             
        
        
        
Suspensions
Explanation:
Suspensions are heterogeneous mixtures that contains large particles that can settle out or be filtered. 
- Suspensions are mixtures of small insoluble particles of a solid in a liquid or gas. 
- Examples are: 
-   powdered chalk in water
- muddy water
- harmattan
The particles in suspension can settle on standing 
Learn more: 
Suspension brainly.com/question/1557970
heterogeneous mixture brainly.com/question/1446244
#learnwithBrainly
 
        
             
        
        
        
<span>2AlPO4 ( aq) + 3MgCl2 (aq) -> Mg3(PO4)2 (s) + 2AlCl3 (aq) </span>
<span>Right answer is D
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