Answer: True
Air is a mixture of many things; it's not just Oxygen, but Hydrogen, Carbon, and Nitrogen as well are made up of air. Fun fact: Nitrogen is actually more abundant in air
 
        
                    
             
        
        
        
Study your experiment setup.<span> In 30 minutes, how will the air temperature in the bottles compare?</span><span> What do you predict will happen to the ice in each bottle?</span>
        
             
        
        
        
Answer:
Moon has to be in-between the Earth and the Sun. 
2. Moon's umbra should sweep your place. 
3. Latitude and longitude of your place should be within the befitting limits.
 
        
             
        
        
        
The volume of a gas that occupies 9 L at a temperature of 325K is 12.46L.
<h3>How to calculate volume?</h3>
The volume of a given gas can be calculated using the following Charle's law equation:
V1/T1 = V2/T2
Where;
- T1 = initial temperature
 - T2 = final temperature
 - V1 = initial volume
 - V2 = final volume
 
- V1 = 9L
 - V2 = ?
 - T1 = 325K
 - T2 = 450K
 
9/325 = V2/450
325V2 = 4050
V2 = 4050/325
V2 = 12.46L
Therefore, the volume of a gas that occupies 9 L at a temperature of 325K is 12.46L.
Learn more about volume at: brainly.com/question/2817451
 
        
             
        
        
        
Answer:
Isotopes of an element are atoms of the same element that have different number of neutrons.