Answer:
-The mole is appropriate only for counting things that are very small.
-One mole is a very large number of something.
-A molecule of water is much smaller than a grain of sand.
Explanation:
True because it is warmer closer to the equator
Answer: malleable
explanation: malleable means to be easily manipulated in shape
Answer:
A number is right I think
Answer: a.
:
is negative
b.
:
is negative
c.
:
is negative
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa
a) 
In this reaction 2 moles of gaseous reactants are converting to 1 mole of gaseous products. The randomness will decrease and hence entropy will also decrease. Thus
is negative.
b) 
In this reaction solid reactants are converting to aqueous products. The randomness will increase and hence entropy will also increase. Thus
is positive.
c) 
In this reaction aqueous reactants are converting to solid products. The randomness will decrease and hence entropy will also decrease. Thus
is negative