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Which of the following elements will have the same number of core electrons as P?
a. calciumb. nitrogenc. arsenicd. zince. chlorine
When solutions of the compound copper (ii) chloride and zinc nitrate are mixed, does the reaction result to form a precipitate, water, gas, or is there no reaction at all.
Consider a steel tank whose volume is 49.0 L and which contains O2 gas at a pressure of 18100 kPa at 29°C. What volume would the gas occupy at STP?
Consider that a benzene molecule could fit nicely within a two-dimensional square box with each side having length of 5 degree A. a. Calculate the four lowest energy levels for an electron confined
A 0.4780-g sample of impure Ca(OH)2 is dissolved in enough water to make 57.00 mL of solution. 20.00 mL of the resulting solution is then titrated with 0.1140-M HCl.
Conjugated diene addition reaction, a) When HCl is added to 1,3-butadiene either 3-chloro-1-butene or 1-chloro-2-butene forms. Which product is more stable? Explain.
which effect on atomic size is more significant the nuclear charge or the energy level that electrons are filling?
what is the corresponding pressure difference between points A and B, in mmHg. At which point (A or B) is the pressure higher, and why? The temperature is 60 °F throughout
If 125 cal of heat is applied to a 60.0 g piece of copper at 25.0 C, what will the final temperature be? The specific heat of copper is 0.0920 cal/(g.C}) .
The mass percent of an element in a compound is the mass of the element (total mass of the element's atoms in the compound) divided by the mass of the compound
Minimal energy cost of H2S conversion to hydrogen and sulfur in gliding-arc is 1.6 eV/molec
Calculate Kb for methylamine. Is methylamine strong base or weaker base than ammonia?
When 2.45 g of an unknown weak acid HA with a molar mass of 85.0g /mol is dissolved in 250.0g of water, the freezing point of the resulting solution is -0.256 C.
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