id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
bcpe-42	Sun, Chengqi	Teaching Design of "Properties of Sodium" based on the Core Literacy of Chemistry	2021	12	.pdf	application/pdf	5642	274	47	Transition In normal temperature settings, sodium reacts with oxygen rapidly, and gray-white metal oxides are formed on the surface of sodium. In alkali and salt solutions, it should be considered that sodium reacts with water to generate sodium hydroxide first, and only in acid with more hydrogen ions does the replacement reaction take place, replacing hydrogen ions with hydrogen.	cache/bcpe-42.pdf	txt/bcpe-42.txt