if 1.50 μg of co and 6.80 μg of h2 were added to a reaction vessel, how many total gas particles would remain in the reaction vessel after the reaction went to completion? assume no gas particles dissolve into the methanol.

Has anyone here taken the orela elementary education subtest 2 (103)? if so can you link me videos, practice tests, or methods on what you did to pass it?

Find the area of shaded region z=-0.89

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.