Chemistry, 11.11.2020 15:10 mohammedel04
Se dau elementele: F: Ba: Ar: K: Ru:Sm: As: Th: Sn: Cu. Se cere: a)
ordonatl elementele in sensul cresterii razel atomice: b) ordonati
elementele in sensul cresterii caracterului metalic sau nemetalic: c)
redati procesele de ionizare: d) ordonati elementele in sensul cesterii
raze lonice
PLS HELP DAU TEST DAU COROANA
Answers: 1
Chemistry, 22.06.2019 09:00, SilverTheAmarok
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 2
Chemistry, 22.06.2019 22:40, lindseyklewis1p56uvi
Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization. a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution. part bcalculate the percent ionization of ha in a 0.010 m solution
Answers: 1
Chemistry, 23.06.2019 08:30, vett072804
Benzonitrile (c6h5cn) is reduced to two different products depending on the reducing agent used. treatment with lithium aluminum hydride followed by water forms k, which has a molecular ion in its mass spectrum at 107 and the following ir absorptions: 3373, 3290, 3062, 2920, and 1600 cm-1. treatment with a milder reducing agent forms l, which has a molecular ion in its mass spectrum at 106 and the following ir absorptions: 3086, 2850, 2820, 2736, 1703, and 1600 cm-1. l shows fragments in its mass spectrum at m/z = 105 and 77. propose structures for k and l and choose an explanation for how this could be concluded.
Answers: 3
Se dau elementele: F: Ba: Ar: K: Ru:Sm: As: Th: Sn: Cu. Se cere: a)
ordonatl elementele in sensul c...
Mathematics, 12.08.2020 20:01