En 1774, el químico británico Joseph Priestley preparó el oxígeno por calentamiento del óxido de mercurio (II), de acuerdo con la siguiente ecuación: HgO = Hg + O2
Si se obtienen 64.7mL de oxígeno, ¿Qué cantidad de Óxido de mercúrico se debió haber utilizado, si se sabe que tiene una pureza del 86% en masa?

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3