7. Distinguish between a thistle funnel and a dropping funnel

Quanti grammi di soluto bisogna aggiungere a \( 50,0 \mathrm{~g} \) di una soluzione al \( 10,0 \% \mathrm{~m} / \mathrm{m} \) perché la sua concentrazione raddoppi?

A metal is considered reactive if it easily loses electrons to achieve a stable octet. Would you prefer metal that readily loses electrons? How is this related to the metal's ionization energy? Would it be better for the metal to have high or low ionization energy?

What is the hybridization of the central atom? \( s p \) \( s p^{2} \) \( s p^{3} d^{2} \) \( s p^{3} \) \( s p^{3} d \)

Which of the following is an example of anionic interference in atomic emission spectroscopy? O Interference of high concentration of sodium ions in assay calcium ions. Interference by formation of less volatile salt with sulphat by calcium. Decreased drop size of the analyte solution by alcohols.

À l'aide des documents, dire si l'eau oxygénée peut mettre en évidence une tache de sang et décrire ce que doit observer Justine si elle en applique sur la tache. S'appuyer sur des équations d'oxydoréduction pour étayer vos propos.