The specific heats and densities of several materials are given below:
material specific heat (cal/g·°c) density (g/cm3)
brick 0.220 2.0
concrete 0.270 2.7
steel 0.118 7
water 1.00 1.00
calculate the change in temperature produced by the addition of 1 kcal of heat to 100 g of steel.

a. 84.7°c
b. 37.0°c
c. 1.43°c
d. 1.18°c

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon