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The bombardier beetle sprays a boiling hot liquid that contains irritating chemicals as a defense. It stores two sets of chemicals separately in its glands. Propose a possible explanation for why the beetle is not harmed by the chemical stores and what causes the explosive discharge.
How many mL of 0.25 m NaOH solution are required and What is a standard soluyion in an acid-base titration
There are more electrons in the n = 4 shell than for the n = 3 in kryton. But, the peak in the radial distribution is smaller for the n = 4 shell than n = 3 shell. Define this fact?
What are the possible values for the principal quantum number (n), the azimuthal quantum number (l) and the magnetic quantum number
It is known that N2O is a linear molecule, but assume it is not known whether the structure is N-N-O or N-O-N. Use the IR data to decide between the two structures. What Vibrations can be assigned to the strong absorbtion bands? What are the possi..
The heat of combustion of ethane C2H6 is 1560 kJ/mol. What is the heat of combustion of ethane in kJ per gram
Draw the Lewis structure for H2SeO3 from the skeletal template structure below. If the valence shells are filled to the usual limit (maximum of 8), how many non-bonding valence electrons are there in the molecule?
The Ksp for Al(OH)3 is 2 x 10-32. At what pH will a 0.2 M Al3+ solution begin to show precipitation of Al(OH)3.
For this question imagine that sea water is a 3.5 mass % solution of NaCl with a density of 1.00g/mL. Assume full dissociation of the NaCl. a) Calculate the freezing point of sea water. Briefly explain why it is not 0 (degrees Celsius).
a compound contains only c h and o. to analyze the compound you determine its empirical formula by analysis for c and h
A 25-g sample of an alloy at 92 degrees celsius is placed in 50 grams of water at 20 degrees celsius. If the final temperature reached by the alloy sample and water is 27 degrees celsius.
How many moles of gas are present in 1.13 L of gas at 2.09 atm and 291 K? What is the volume in L of 3.59 g CO2 of gas at 2.09 atm and 291 K?
Alzarin yellow has a pH range of 10.1-12.1. What is its Ka. It is yellow at pH 10 ANd red at pH 12. What is the color of a solution with a pH 10.9 that has a few drops of alzarin yellow
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