Chemistry, 28.01.2021 22:30 nevarezchiu7972
50 cm³ of 2.5 Moldovan-3 hydrochloric acid was placed in a polystyrene beaker of negative will heat capacity its temperature was recorded and then 50 cm³ of 2.50 Moldm-3 NaOH at the same temperature was quickly added with string the temperature rose by 17°C the resulting solution may be considered to have specific heat capacity of 4.2 what is an approximate value of the murder enthalpy of neutralisation of hydrochloric acid and sodium hydroxide from this experiment
Answers: 1
Chemistry, 22.06.2019 10:30
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o
Answers: 1
Chemistry, 22.06.2019 11:00
When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.
Answers: 1
Chemistry, 22.06.2019 14:30
Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.
Answers: 1
50 cm³ of 2.5 Moldovan-3 hydrochloric acid was placed in a polystyrene beaker of negative will heat...
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