HELP ME PLSS 72.3 g of ice at -15.0oC has heat energy added to it until it becomes steam at 145oC. Calculate the total amount of heat energy needed (in Joules) to accomplish this.

A) Calculate the energy required to heat the ice to its melting point?

B) Calculate the energy required to melt the ice?

C) Calculate the energy required to heat the water to its boiling point?

D) Calculate the energy required to vaporize the water?

E) Calculate the energy required to heat the steam to 145oC?

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro

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

Do polar molecules have ionic bonds?