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UNIT: Circulation System
Two Questions (Full sentences)
1. Explain how the structure of an artery fits its function.
2. Explain what happens to your blood flow if you are out in the cold for too long without cold protection (gloves.etc). How does this happen?
If a 189-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft 1.0 ft, what is the average thickness of the sheet in meters?
In the balanced equation 6CO2 + 6H2O → C6H12O6 + 6O2 how many grams of C6H12O6 are produced from 60g carbon dioxide?
Explain what is the heat released during reaction. Also what is the enthalpy of neutralization. Does doubling the volumes of acid and base double the amount of heat. Does doubling the concentration of acid base double the amount of heat released
The reaction between NO2 and CO to produce NO and CO2 is believed to occur via two steps shown below. Step 1: NO2 + NO2 ? NO + NO3
What product would you expect to make? Propose a detailed reaction mechanism for this reaction. What by-products might be expected in this experiment?
a 200-g sample of a metal absorbs 500 J, and its temperature rises by 30 degrees celsius. what is the specific heat of the metal?
Express your answers using two significant figures. Enter your answers numerically separated by commas. [HCO2H], [HCO?2], [H3O+], [OH?] = Part C Also calculate the percent dissociation. Express your answer using two significant figures.
an ecell consists of a ag electrode in contact with 346 ml of 0.1 m silver nitrate solution and a mg electrode in
Compute the mass in g of precipitate formed when excess sodium hydroxide is added to 42.5mL of 15.5% magnesium nitrate solution whose density is 1.12 g/mL.
Metallic aluminum reacts with MnO_2 at elevated temperatures to form manganese metal and aluminum oxide. A mixture of the two reactants is 67.2% mole percent Al.
Calculate the solubility product (Ksp) for silver bromide if the concentration of the silver ion is 0.770 M and of the bromide ion is 0.770 M.
Problem- Based on the molecular structures of the fluorocarbons, account for the difference in their solubilities.
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