Read the sentence. Selena, Ben, and Raj all won leads in the musical, and they has practiced every afternoon during study hall for the past two weeks. Which is the best replacement for the underlined words? have practice will practice will be practicing have practiced

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom