Chemistry, 30.03.2020 20:21 TheSmartRey
When an atom gains an electron to achieve stability, it becomes charged (answer is "negatively" or "positively." What happens to an atom’s charge if it loses (donates) an electron? (hint: all atoms start out electrically neutral because the # of protons = # of electrons)
Answers: 1
Chemistry, 22.06.2019 03:30
Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)
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Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
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Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
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What volume does 1.70 ×10–3 mol of chlorine gas occupy if its temperature is 20.2 °c and its pressure is 795 mm hg?
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When an atom gains an electron to achieve stability, it becomes charged (answer is "negatively" or...
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