Shawn can fly from SSC to UC davis (21.2 miles) in 4 femtoseconds. What is his speed in ft/me?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Classify this reaction: 2al+n2-> aln.