Which of the following groups of atoms are most likely to have similar properties?

1.nickel (28), calcium (20), bromine (35)

2.aluminum (13), germanium (32), antimony (51)

3.oxygen (8), selenium (34), tellurium (52)

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

Stage in which a typical star has completely stopped fusion

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