If a substance had 32kJ to raise its temperature to its melting point and then needed 22kJ to melt it completely and then another 150kJ to raise its temperature to room temperature, what is its internal energy?

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

the atomic mass is the bottom number on the element.

-steel jelly

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

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