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A 35.0-kg child starting from rest slides down a water slide with a vertical height of 20.0 m. What is the child's speed
(a) halfway down the slide's vertical distance, and
(b) three-quarters of the way down? (Neglect friction.)
Excess sodium sulfate is added to exactly 50 mL of a solution containing an unknown amount of silver(I) cation. Determine the concentration of the silver ion in this solution if 3.54 mg of a solid is isolated.
Consider an aluminum atom to be a sphere with radius equal to 143 pm and calculate the volume actually occupied by the atoms in your aluminum cylinder
A 116.8mL sample of 0.110M methylamine (CH3NH2, kB = 3.7*10^-4) is titrated with 0.255m HNO3. Calculate the pH after the addition of each of the following volumes of acid.
suppose that you added 35.0 g of water at 99.50 degrees celsius to a calorimeter containing 150 g of water at 23.0
Put the following substances in correct order of increasing boiling point: Ar, F2, H3COH, Ir, SO2.
at room temperature more of the collisions have sufficient energy to produce a reaction. the piece of zinc needs to be bigger at 4 deg c.
Iron vapor produces an emission spectrum that includes an intense peak at 527.0 nm. Determine the frequency (in Hz) for this type of electromagnetic radiation. What color of visible light corresponds to this wavelength? What is the energy (in J) p..
Determine the boiling point of a solution of 22.5 g of fructose, C6H12O6 , in 294 g of phenol.
Draw the possible chair forms of cis and trans 1-isopropyl-3-methylcyclohexane. Are the two forms identical, enantiomeric, or diastereomeric?
If a minimum energy of 2.00x10^5 J/mol is needed for this process, what is the minimum energy needed from each photon? B. Calculate the wavelength of light necessary to provide photons of this energy
an industrial process makes calcium oxide by decomposing calcium carbonate. which of the following is not needed to
As electrons are added to the s and p sublevels in the same electron shell (level), they are pulled closer to the highly charged nucleus, causing what to happen?
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