Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: cao(s) h2o(l) → ca(oh)2(s) in a particular experiment, a 2.50-g sample of cao is reacted with excess water and 2.80 g of ca(oh)2 is recovered. what is the percent yield in this experiment

Which change to the system wood cause the freely-moving piston to lower?

Juju.01) 5 geologic events a group of students designed an experiment in an ice rink to represent the solar system. the steps of the experiment are listed below. 5: geologic events 1. choose a student to represent the sun. the planets are represented by two tennis balls. 2. ask the student to hold the tennis balls in each palm and spin on the ice with arms stretched out. 3. ask the student to draw in the arms after about 10 spins. 4. observe the student's arms rotate faster when they are closer to the body. 05 geologic events enors) the experiment most likely demonstrates that (2 points) 07 discussion-based sessment/module planets exert gravitational force on the sun the sun exerts gravitational force on the planets 3.07 discussion-based ssessment speed of a planet depends on its distance from the sun new version available! (3.0.119) get it now submit 18.07: module exam description

The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?