When the metal was placed in the calorimeter, its temperature dropped to the equilibrium temperature. Calculate the change in temperature of each metal sample. Record these values in Table B of your Student Guide. What is the change in temperature for the aluminum wire? C What is the change in temperature for the steel wire? C What is the change in temperature for the lead pellets? C

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

What element has similar physical and chemical properties as boron.