table c: known specific heat values for common
materials
material specific heat (j/g*c)
water 4.18
concrete 0.88
wood 1.80
aluminum 0.90
glass 0.84
sand 0.83
steel 0.49
iron 0.44
copper 0.38
lead 0.16
gold 0.13
what is the best insulator and why?

Water

Explanation:

Specific heat capacity is defined as the amount of heat in joules needed to raise the temperature of 1 gram of a substance by 1 degree Celsius.

An insulator is a substance which conducts heat to a very poor extent.

Based on the two definitions, we may conclude that the greater the value of specific heat capacity, the harder it would be to heat up the material, that is, the more heat would be required.

Among all of the substances, notice that water has the greatest specific heat capacity, thus, it's the best insulator.

On the other hand, to make it clear, gold is the best conductor, as it has the lowest specific heat capacity.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation: