Chemistry, 22.07.2019 11:00 perezesmeralda78
Nickel-63 has a half-life of 92 years. how much nickel would remain in a sample that started with 20 grams of nickel-63 at the end of 184 years?
Answers: 1
Chemistry, 21.06.2019 15:00
If a reaction has g of -136kj at 110°c, will it be spontaneous at this temperature (110°c)? yes or no
Answers: 2
Chemistry, 21.06.2019 23:00
Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende
Answers: 1
Chemistry, 21.06.2019 23:20
Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night. when he took it out, its new volume was 322 milliliters, but its pressure was the same. if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is kelvins.
Answers: 2
Chemistry, 22.06.2019 01:00
Water is important for the of cells. a: size, shape, and temperature b: temperature, color, and odor c: color, odor, and size d: shape, temperature, and color
Answers: 2
Nickel-63 has a half-life of 92 years. how much nickel would remain in a sample that started with 20...
Biology, 26.06.2019 23:00
Mathematics, 26.06.2019 23:00
Social Studies, 26.06.2019 23:00
English, 26.06.2019 23:00
Mathematics, 26.06.2019 23:10
Biology, 26.06.2019 23:10