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1) The increased in temp of the surface of the earth due to heat absorbs by gases in the atmospher is called
a) radiationb) the hydrogen cellc) the greenhouse effecte) none of thesec) coal
2) A chemical reaxction that absorbs heat from the surrounding is said to be
a) exothermicb) endothermicc) bipolar
3) A fuel with the potential to supplement if not replace gasoline, formed from the fermentation of surgars by the action of yeasy is called
a) natural gasb) coalc) ethanold) smoge) none of these
how many whole drops (.05 mL/drop) of 6 M HCl are required to dissolve the calcium carbonate? b) What is the Ca concentration when this is dissolved and diluted to 100.00mL
A 1.5618-g sample containing sulfate ion was treated with barium chloride reagent, and 0.2321 g of barium sulfate was isolated. Calculate the percentage of sulfate ion in the sample.
treatment of ortho-xylene with CH3COCl and AlCl3 followed by hydrolysis gives virtually a single product(one isomer). Treatment of this product with NaOCl in base followed by acidification gives a crystalline solid. Write equations for these react..
AgCl is found to have 78.1% ionic character, and its gas phase dipole moment is 11.5 D. What is the distance between the Ag and Cl atoms in gaseous AgCl?
Draw the structural formula for 3-methylhexane and 2-butanol and identify the chiral carbon and the four "groups" attached to the chiral
Concentrated sodium hydroxide is 19.4 M and has a density of 1.54g/mL. What is the molality of concentrated NaOH?
Important information about Organic Chemistry, The most reasonable formula for a compound demonstrating M+ =101 with a minor M+1 peak is
A snack pack of potato chips holds 28 grams of chips. Based on your data, how much fat is present in a snack pack? In such a bag of chips, there are about 15 grams of carbohydrate and about 1 gram of protein.
Ethylene glycol is used as automobile antifreeze. 6.38g og this compound contains 2.47g of carbon and 0.620g of hydrogen. The rest is oxygen. The molar mass is 62.0g/mole.
assuming an Sn2 reaction mechanism, predict the major organic product(s) of (s)-3,3-dimethyl-2-butanol when reacted with HCl.
A buffer solution contains 0.386 M NH4Cl and 0.316 M NH3 (ammonia). Determine the pH change when 0.064 mol HBr is added to 1.00 L of the buffer
acetic acid solution was placed in a 250 mL volumetric flask and the flask filled to the mark with water. What is the concentration of the new, diluted solution?
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