Which of the following is true statement about isotopes? . a.. the number of protons always equals the number of neutrons in all isotopes.. b.. the number of protons never equals the number of neutrons in an isotope.. c.. different isotopes for the same element will always have the same numbers of neutrons.. d.. different isotopes for the same element always have the same number of protons..

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

The number at the end of an isotope’s name is the number.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa