I believe it's (A). It will double.
Explanation:
Charles law states that the volume of an ideal gas is directly proportional to the absolute temperature at constant pressure. (Charles's law).
The answer is D because it uses the electrical energy from the wall to create heat (Thermal) energy for the clothes
Answer B: The water is touching the bottom of the pan, but not the heat source.
Convert gal to liters:
14.0 gal x 3.785 L / gal = 53.0 L
Multiply volume by density (the density would have the units of .758 g/mL or .758 kg / L)
53.0 L x .758 kg/L = <span> 40.2 kg</span>
Answer: 
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
Thus in the reactants, there are 2 atoms of hydrogen and 2 atoms of iodine .Thus there has to be 2 atoms of hydrogen and 2 atoms of iodine in the product as well. Thus a coefficient of 2 is placed in front of HI.
The balanced chemical reaction is:
