A 1.00 L mixture of helium, neon, and argon had a total pressure of 662 mm Hg at 298 K. If the partial pressure of helium is 341 mm Hg and that of neon is 112 mm Hg, what mass (in grams) of argon is present in the mixture

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The reactions of photosynthesis occur in the of plant cell? a. mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?