How many molecules are in 165 g of carbon dioxide?

6.774 × 1024

2.258 × 1024

2.258 × 1025

6.774 × 1024

Theoretically, which metal should be the most reactive? hydrogen lithium francium fluorine

There are main groups in the modern periodic table of elements

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump