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1. Write 86,400 s in exponential notation.
2. Write 0.15 ns using exponential notation with units of s.
3. 141000 g =? kg
4. Write 1.4 Mg using exponential notation with units of g.
5. Write 30 pm using exponential notation with units of m.
6. Write 12,800 km using units of Gm.
7. Determine how many ps thre are in 1 s.
Aluminum has many different isotopes. What percentage of the mass of 26Al is attributable to its neutrons
Complete the reaction; write the equation as a balanced equation, complete ionic equation, and net ionic equation. Be sure to show the state of each compound.
Consider the reaction between 50.0mL of 0.200 M sodium hydroxide and 75.0mL of 0.100 M HCL. Which of the following statements is correct
If sample of sodium is dropped into a container of water the reaction is 2Na +2H2O ---> 2NaOH +H2. If 10.4 g of hydrogen are produced, how many g of NaOH are also formed
Calculate delta H^degree (in kilojoules per mole) for benzene,C6H6 , from the following data: 2C6H6(l)+15O2(g)---->12CO2(g)+6H2O(l), delta H^degree= -6534 kJ
Write the molecular formula for a compound with the possible elements C, H, N, O that exhibits a molecular ion at 68.0625. please explain it because I want to know how to do it.
Demonstrate the wave function for a H atom with quantum numbers n=3, l=1 ml=-1 is a solution to the TISE
A 25.0 mL bubble is released from a diver's air tank at a pressure of 4.00 atm and a temp of 11.0 degrees C. Show how to determine the volume of the bubble when it reaches the surface where the pressure is 0.998 atm and the temp is 18.0 degrees C.
What mass of melamine, C3N3(NH2)3 will be obtained from 162.0 kg of urea, Co(NH2)2 if the yield overall reaction is 80%
A solution of a dye in a 0.80 cm cuvette of concentration 1.25 x 10^-3 M had an absorbance of 0.115 at a particular wavelength. What was the molar absorptivity of the dye
calculate the lattic parameter and the atomic radius from this information. (b) What is the planar density of atoms in the (110) plane (and sketch how they are arranged).
If methanol were used rather than water in measuring the density of the irregular objects, how would that have affected the result. explain
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