En cierto átomo, el número de protones y el número de neutrones son consecutivos; además, su número de masa es 31. Calcule el número de electrones que posee dicho átomo.

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

How do you lengthen a pattern piece? (family and consumer science, sewing)

At 35.0°c and 3.00 atm pressure, a gas has a volume of 1.40 l. what pressure does the gas have at 0.00°c and a volume of 0.950 l? which equation should you use? p2= p1v1t2/t1v2what is the pressure of the gas? 3.92 atm these are the answers