15 A piece of metal weighing 59.047 g was heated to 100.0 °C and then put it into 110grams of
water (initially at 22.8 °C). The metal and water were allowed to come to an equilibrium
temperature, determined to be 27.8 °C. Assuming no heat lost to the environment, calculate
the
specific heat of the metal. Use Q= -Q *
(6 Points)
.49)/(g•°C)
.32J/(g•°C)
.21J/(g•°C)
O .67J/(g•°C)

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j