A child is upset because his ice cream is melting in his bowl. He thinks he now has less dessert. Which of the following explanations correctly states why the child is incorrect?
He actually has more, not less, ice cream.
No mass is lost during a change of state.
The mass will increase if he freezes the melted ice cream.

Figure 10-1 study figure 10-1. the strong nuclear force felt by a single proton in a large nucleus

Calculate the change in entropy if br2(l) is converted into gaseous br atoms. s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents