Answer:
a, b
Explanation:
Electrolytes dissociate to make ions, because of it  they conduct electricity.
 
        
             
        
        
        
Answer:
a tree absorb as much as 48 pound of carbon dioxide per year and can sequester 1 ton of carbon dioxide by the time it reaches 40 years old
 
        
             
        
        
        
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Answer:
20 g Ag
General Formulas and Concepts:
<u>Chemistry - Stoichiometry</u>
- Using Dimensional Analysis
<u>Chemistry - Atomic Structure</u>
Explanation:
<u>Step 1: Define</u>
[RxN]   Cu (s) + AgNO₃ (aq) → CuNO₃ (aq) + Ag (s)
[Given]   10 g Cu
<u>Step 2: Identify Conversions</u>
[RxN]   1 mol Cu = 1 mol Ag
Molar Mass of Cu - 63.55 g/mol
Molar Mass of Ag - 197.87 g/mol
<u>Step 3: Stoichiometry</u>
<u /> = 16.974 g Ag
 = 16.974 g Ag
<u>Step 4: Check</u>
<em>We are given 1 sig fig. Follow sig fig rules and round.</em>
16.974 g Ag ≈ 20 g Ag