Answer: <em>Running water, even at a trickle, helps prevent pipes from freezing. If you decide to use fuel-burning equipment, such as a kerosene heater, ensure it is vented to outside and kept clear of any vents. Keep garage doors closed if there are water supply lines in the garage.</em>
Explanation:
 
        
                    
             
        
        
        
The answer is “Only some of the molecules of a weak base dissociate to produce hydroxide ions when mixed with water, but all of the molecules of a strong base dissociate to produce hydroxide ions”
        
             
        
        
        
<span>c. q = 0.75 g x 0.897 j/g•°c x 22°c</span>
        
             
        
        
        
Answer:
0.85 mole of PBr3. 
Explanation:
We'll begin by writing the balanced equation for the reaction. This is given below:
3Br2 + 2P —> 2PBr3
From the balanced equation above, 
3 moles of Br2 reacted to produce 2 moles of PBr3. 
Therefore, 1.27 moles of Br2 will react to produce = (1.27 x 2)/ 3 = 0.85 mole of PBr3. 
Therefore, 0.85 mole of PBr3 is produced by the reaction.