Helen put the soaked sandstone into a freezer for 24 hours. Water in the spaces in the sandstone froze and expanded. What would happen to the sandstone as the water froze and expanded?

Idon't know hope someone you

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

A. ​it generates energy from carbohydrates.b. it requires activation by oxygen.​c. ​it is used by cells to dispose of excess electrons