Mg(c) + 237shi (4z) ¥at h2)
        
                    
             
        
        
        
Sugar dissolving in warm water because when the sugar dissolves you can get the sugar back by letting the water evaporate.,
        
                    
             
        
        
        
Answer:
mountain 
Explanation:
when plates move towards each other they create mountains
 
        
             
        
        
        
Answer:
Explanation:
we know that specific heat is the amount of heat required to raise the  temperature of substance by one degree mathmeticaly 
Q=mcΔT 
ΔT=T2-T1
ΔT=26.8-10.2=16.6 
C for water is 4.184 
therefore 
Q=1.00*4.184*16.6
Q=69.4 j 
now we have to covert joule into calorie 
1 calorie =4.2 j 
x calorie=69.4 j/2 
so 69.4 j =34.7 calorie thats why 34.7 calorie heat is required to raise the temperature of water from 10.2 to 26.8 degree celsius
 
        
             
        
        
        
Phase changes happen as the temperature changes. 
All matter can move from one state to another. It may require extreme temperatures or extreme pressures, but it can be done. Sometimes a substance doesn't want to change states. You have to use all of your tricks when that happens. To create a solid, you might have to decrease the temperature by a huge amount and then add pressure. For example, oxygen (O2) will solidify at -361.8 degrees Fahrenheit (-218.8 degrees Celsius) at standard pressure. However, it will freeze at warmer temperatures when the pressure is increased.