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Which of the following are chemical processes?I) rusting of a nailII) freezing of water III) decomposition of water into hydrogen and oxygen gasesIV) compression of oxygen gas
if a 60 w light bulb at 120 v is left on in your house to prevent burglary and the power company charges 10 cents per
A 100 mL sample of .20 M HF is titrated with .10 M KOH. Determine the pH of the solution before the addition of any KOH. The Ka of HF is 3.5 * 10^-4
Express your answer in condensed form in order of increasing orbital energy. Write out the electron configurations for:
Cynthia lives 5.0 miles from grossmont college. Assuming that there are no traffic signals , how long would it take in minutes her to reach school if she drives35 MPH. If cynthia oversleeps and drives 50 MPH how long will it take?
As the mole fraction of a species in an ideal solution increases, Explain does its partial molar entropy increase or decrease
1.list all the strong aqueous acids. what is the difference between a strong acid and a weak acid? how do the
Methyl Orange is an acid-base indicator. In dilute solution, at pH greater than 4.4, it is yellow. At pH=3.2 the solution appears red. Draw a structure of the species that is formed at the lower pH of the acid proton adds to the azo nitrogen atom ..
Read carefully, 0.1M HCl is added into a mixture of 25mL of water and 25mL of Ca(OH)2. For the end point to be reached 1.3mL of 0.1M HCl is added into the mixture. How would I calculate the molarity of the hydroxide ion (OH-) for this final mixtur..
Explain the hybridization state of C and N atoms in tryptophan as well as determine the number of sigma and pi bonds in the molecule.
a sample oxygen is collected over water and has a volume of7.84 ml. the pressure od the collected wet gas is 71.8 kpa
Explain the following species are isoelectronic with the noble gas krypton. Arrange them in order of reduce radius: Rb+ Y3+ Br- Sr2+ Se2-
A solution has a hydroxide-ion concentration of 9.22 × 10-5 M. What is its hydronium-ion concentration
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