Answer:
Nitrate NO3 
here's your answer, hope it helps you
 
        
             
        
        
        
The correct answer is the last option. When <span>Zac releases the air from a balloon, it will expand to fill the room. It will not expand in the sense that molecules will be big but the molecules will be more spread out into the room and more air molecules will be present to fill the room.</span>
        
                    
             
        
        
        
add up the mass of protons and neutrons
 
        
                    
             
        
        
        
1 gallon of antifreeze = 60% of mixture. Total mixture:
Vm = 1/0.6
= 1.67 gallons
Volume of water = total vol - antifreeze vol
= 1.67 - 1
= 0.67 gallon of water
        
             
        
        
        
The volume in liters of 3245 aluminum cans is 24.8 L.
A recycling center collects 3245 aluminum cans and there are 22 aluminum cans in 1 lb. The mass of 3245 aluminum cans is:

To convert mass to volume, we need the density of aluminum (5.95 lb/L). The volume corresponding to 147.5 lb of aluminum is:

The volume in liters of 3245 aluminum cans is 24.8 L.
You  can learn more about density here: brainly.com/question/1841285