Which element is shown in the picture here?
Image result for bohr model of ruthenium
O Lihtium (Li)
Ruthenium (Ru)
O Lanthanum (La)
Mandelum (Md)

What are transitions between a liquid and gas called? identify which way they are transitioning

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.