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a cleaning solution is found to have a oh- 32 x 10-12m what is the h3o and is the solution acidic or
what are the spectator ions of the following reactionh2so4nbspaq 2 koh aq k2so4nbspaq 2h2o
a sample has a specific heat of 0155 calgmiddotdegc how much energy will be required to raise the temperature of the
write the elemental symbol with charge for when aluminum forms an ion and tell whether it is an anion or a cation think
a 120 ml sample of a compound has a density of 144 gml what is the weight of the sample in
1 for the following reaction at 25oc deltaho -1069 kj and deltaso 289 jka 4b rarr 3c 3dwhat is deltagoat 442oc in kj2
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1 how many atoms are in 107 g of na2 the element x occurs naturally to the extent of 7023 30x and the rest 32x what is
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when 450 g of mgoh2nbspreacts with 450 g of hcl according to the equation below mgoh2nbspproduces 0772 mol of
a carnot engine absorbs 100j of heat from a reservoir at the temperature of the normal boiling point of water and
a ground state h-atom absorbs a photon of wavelength 9491 nm and its electron attains a higher energylevel the atom
imagine an irreversible engine i and a carnot engine r operating between the same two reservoirssuppose that they
draw a symbolic diagram of a set of carnot engines with the following characteristicseach engine absorbs the heat
the initial state of 01 mol of an ideal monatomic gas is ponbsp 32pa and vonbsp 8m3nbsp the final state is p1 1 pa and
jenny and mark complete a reactivity experiment by placing samples of metals into water they initially place small
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identify the chemical components and the proportions necessary to achieve a buffer with the desired ph include relevant
1 prove that the slope on a ts diagram ofa an isochoric curve is tcvb an isobaric curve is tcp2 why does an isochoric
sketch ts diagrams for the following four ideal gas cycles otto diesel a rectangle on a pv diagram and a right triangle
a current of 10 a is maintained for 1s in a resistor of 25 omega while the temperature of the resistor is kept constant
a one kilogram of water at 273 k is brought into contact with a heat reservoir at 373 k when the water has reached 373