Please help me with this question!! I’m not sure if they’re the insoluble ions that precipitate with chromate or the soluble ones… You wants to precipitate all the chromate ions in the solution. Which of the following solutions can you use? Select ALL that applies

1) Sodium Sulfate
2) Copper (II) Chloride
3) ammoniums nitrate
4) water
5) Silver nitrate

What’s the scientific notation for the number 6,840,000,000

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

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.