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Explain from a micro and macro perspective what would happen and what might be observed when a bimetallic strip of aluminium and copper is heated from 27 degrees to 327 degrees?
given that the thermal expansion of copper is 17thermal expansion of alumiium is 23melting point of copper is 1082melting point of aluminium is 659density of copper is 8920density of aluminium is 2710
A sample of gas is collected over water at 14 degrees Celsius. The pressure of the resultant mixture is 113.0 kPa. What is the pressure exerted by the hydrogen alone?
Write a balanced chemical equation for the decomposition of limestone, CaCO3, to quicklime, CaO, and carbon dioxide.
A 180 kiln is used for vitrifying ceramics. It is currently operating at 1025 , and the pressure is 1.100 . How many moles of air molecules are within the confines of the kiln.
mixture(O,H) is ignited with a spark and it reacts to form (H2O)liquid water. determine the temperature of water.
How much heat (in kJ}) is evolved in converting 1.00 {mol} of steam at 160.0C to ice at -55.0C? The heat capacity of steam is 2.01 {J}}/{{g.C}} and of ice is 2.09 {J}}/{{g.C}}.
calculate the molar quantity of N2 that must be generated.What molar quantity of sodium azide is required to generate this much nitrogen?
The Ka of a monoprotic weak acid is 5.16 × 10-3. What is the percent ionization of a 0.153 M solution of this acid?
A gas occupies 4.71 liters at 62°C and 795 torr. What volume will it occupy if it is cooled to 17°C and compressed to 911 torr?
The temperature in the laboratory was 23°C and the barometric pressure was 621. mm Hg. You will need to look up vapor pressure of water at that temperature. Find the equivalent mass of this metal.
use curved arrows to show the flow of electrons in each step, and note any relevant charges or lone pairs of electrons.
Silver chloride, often used in silver plating, contains 75.27% Ag. Calculate the mass of silver chloride in grams required to make 1555.0 g of silver plating.
If 5.00 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
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