8. a base has a ph level of
a. between 0 and 7
b. exactly 7
c. between 7 and 14
d. between 0 and 14

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Which of two curves exhibits exponential growth

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol