A substance burns in the presence of oxygen. Which answer choice names a chemical property in this scenarlo?
O density
O boiling point
solid formation
O flammability

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

What is the equation for electrical work?

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud