1. In general , which type of compound tends to have the lowest melting point?
O A. Molecular solids
O B. Network solids
O C. lonic salts
O D. Metals

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

How many molecules are present in 3 mols of silicon dioxide (sio2)?

How can you increase the strength of an electromagnet?