Answer:
Thermal insulation. Thermal insulation is the reduction of heat transfer (i.e. the transfer of thermal energy between objects of differing temperature) between objects in thermal contact or in range of radiative influence.
Explanation:
The density of a material is its unique property by which a unknown material can be identified and also the impurity (if present) in a material can be concluded. Mathematically the density can be expressed as-
. Thus from the mathematical expression we can say that the density is the mass per unit volume of a material. Here the density of ethanol is given 0.789 g/mL. Thus the weight of the 1 mL ethanol is 0.789g. Thus the weight of the 125 mL of ethanol will be (125×0.789) = 98.625 g.
100 degrees farenheight I think because thats when water boils in any matter
Calcium chloride has the following formula: CaCl2
Based on this formula: one mole of calcium chloride contains two moles of chlorine
Therefore: two moles of calcium chloride would contain four moles of chlorine.
Number of atoms = number of moles x Avogadro's number
Number of atoms = 4 x 6.022 x 10^23 = 2.4088 x 10^24 atoms
The second one ,I hope I'm right .
