A 250 gram chunk of silver is dropped into 250. mL of water at 23.0 °C. The final temperature of the water was measured as 30.1 °C. Calculate the initial temperature of the
piece of silver. Assume that all heat transfer occurs between the silver and the water (the Cp
of silver is .240 J/gºC and water is 4.18 J/gºC)

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Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)