Positive ions from a base and negative
ion from an acid form salt.
 
<span>To add, table
salt or common salt is a mineral composed primarily of sodium chloride, a
chemical compound belonging to the larger class of salts. Rock salt or halite
is also the common term for salt in its natural form.</span>
 
        
                    
             
        
        
        
ANS : 313℃
You need to use K in this.
To convert ℃ to Kelvin (K), add 273.15 to ℃.
 
        
        
        
Spring C stretches 100 cm.
Explanation:
The spring constant is simply the stiffness of the spring. The higher the spring constant the more stiff the spring is. 
Spring constant shows the force needed to stretch a spring from it's equilibrium position. If a material requires more force to cause it to stretch, it will have a high spring constant. 
           According to hooke's law "the force needed to extended an elastic material is directly proportional to its extension"
           F = ke 
    k is the spring constant
    e is the extension
We see that the spring that stretches by 100 is the less stiff compared to other springs. It has the smallest spring constant. 
Learn more; 
Force brainly.com/question/8882476
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KE=1/2 mv²
 = 1/2 × 70 × (6)²
 = 1260
        
             
        
        
        
Homogeneity and isotropy, On large enough scales, the Universe looks pretty much the same in all directions. The big bang theory is based on two assumptions: the first is centered around Einstein's general theory of relativity, which accurately describes gravity and the interactions of matter; and the second, also known as the cosmological principle, asserts that the universe is homogeneous and isotropic on a large enough scale. 
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