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consider a projectile which is fired from ground level at an angle of 30 from horizontal and with a muzzle velocity of 250 m/s. how long was the flight? How far did it travel in the horizontal direction before landing? What was the highest altitude it reached? Neglecting air friction at what angle should the projectile have been fired to maximize the horizontal range.
How many milliliters of a 0.300 M lead(II) nitrate solution are needed to react with 50.00 mL of a 0.500 M potassium chromate solution?
What mass of sucrose should be combined with 541 of water to make a solution with an osmotic pressure of 8.30 at 295 ? (Assume the density of the solution to be equal to the density of the solvent.)
What organic product(s) is formed when 1-methylcyclopentanol is heated in the presence of an acid catalyst?
According to the delocalized molecular-orbital theory of metals, in what sense do we say that the entire piece of metal
calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400.0g of H2O
Hydrogen peroxide decomposes to give water and oxygen gas according to the equation below. If 3.0 moles of hydrogen peroxide decompose
Which resonance structure for the SCN- ion and the COS molecule would you expect to be more stable
Calculate the equilibrium concentrations for all species: B. Calculate the value of the equilibrium constant, K.
How many ml of a 2M HCl are required to neutralize 200 ml of a 0.4 M solution of NaOH?
You have samples of approximately 8mL solution with ph ranging from 4 to 10. Calculate the volume of 1M HCIO4 needed to lower the ph to 2.5.
A gaseous mixture containing 0.150 mol fraction of carbon tetrachloride (CCl4) and 0.850 mol fraction of dry air is initially at 65.0°C
what is the density of sample of ammonia gas if the pressure is 705mmHg and the temperature is 63.0 degrees C?
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