2018年6月30日 · i^59=-i i^59=i^56i^3=(i^16)^4i^3=1i^3=i^2i=-i

Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a new sample of iron? Show all calculations leading to a solution.

2016年8月3日 · This is asking you to draw a potential energy diagram for an endothermic reaction. Recall that DeltaH_"rxn", the enthalpy of reaction, is positive for endothermic …

The sum of the measures of all the angles in a triangle is always equal to #180^o#.. In a right triangle, however, one of the angles is already known: the right angle, or the #90^o# angle.

Certain systems, such as the SI system of units, have different units for describing the same features, such as the meter and millimeter, which are both units of distance. If a measurement …

2017年9月12日 · Each energy level listed does not contain the given sublevels in the ground state. In the ground state for each energy level: In the 2nd energy level, electrons are located …

2014年3月27日 · You multiply the molarity by the number of osmoles that each solute produces. An osmole (Osmol) is 1 mol of particles that contribute to the osmotic pressure of a solution. …

If a gaseous mixture is made by combining 3.54 g of Ar and 2.59 g of Kr in an evacuated 2.50 L container at 25 degrees C, what are the partial pressures of each gas and what is the total …

2017年8月27日 · The given molecule is #"cis-1,4-dimethylcyclohexane"#, where one of the methyl substituents is AXIAL, and the other is EQUATORIAL.

2017年9月22日 · CH_2O is the empirical formula..... By definition, the empirical formula is the simplest whole number ratio defining constituent atoms in a species.