Chemistry, 20.01.2020 11:31, katherineweightman
Which of the following is an indication that a substance has undergone a chemical change? no new product has been formed. the color of the substance has not changed. the original constitute has not changed. the molecular structure has changed. nextreset
Answers: 2
Chemistry, 20.06.2019 18:04, kelly3215
If a certain battery supplies 1.0Ă—108 electrons per second to the negative terminal and the battery contains 7.00 moles of electrolytic solution (which means the solution contains 7.00 moles of hso4), what fraction of the solution undergoes a chemical reaction each second
Answers: 1
Chemistry, 22.06.2019 07:40, sadcase85
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
Answers: 1
Chemistry, 22.06.2019 10:10, jojomgarcia01
When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —
Answers: 2
Which of the following is an indication that a substance has undergone a chemical change? no new pr...
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