Chemistry, 27.11.2021 18:10 karsynraine9419
Help please I need it immediately If the combustion of 7.8 g of benzene emits 326.76 kJ of heat, can you calculate the thermal manifestation (∆H °) of the combustion reaction of benzene?
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Measuring which physical property is most likely to produce the most precise results when trying to identify a substance
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Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle
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22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
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Help please I need it immediately
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