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2016-10-01 Thermodynamics - Chemical reactions between acids with acids.:

Hi Prashant,    Generally dilute acids do not react together. You just get a mixture of acids.  Hydrochloric and Nitric form Aqua Regia which is used to dissolve gold.  Nitric and sulphuric form Mixed

2016-09-30 Number Theory - Rates: Follow-Up:

Hello Kenneth  The amount of work done, w, is proportional to the number of men, m,  the hours per day, h, and the number of days.  So w = kmhd  substituting gives w = k*24*8*15 = 2880k  Now the same w

2016-09-30 Entomology (Study of Bugs) - Bed bug?:

Jeff:    The image does not even look like an insect to me, and I saved the pic and enlarged it.    Definitely not a bed bug from what I can tell.  You may still want to take the specimens to a local entomologist

2016-09-30 Entomology (Study of Bugs) - Can you please identify this bug:

Hi Diana,    I am very sorry for any discomfort you may be experiencing. Make sure to clean the bite with soap and water and watch for unusual symptoms. Consult a doctor if you notice any symptoms that

2016-09-29 Entomology (Study of Bugs) - Beetle ID:

Hi, Carol:    The insect in your images is a nymph (juvenile, immature) cockroach, likely the American Cockroach (Periplaneta americana).  It may or may not signal a larger problem.    In my experience


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