1. The grid below represents part of the periodic table. The letters do not represe actual symbols of the elements. Study it and answer the questions that follow A H w J D F B E c С a) Explain why element A is placed in two positions in the periodic table. b) Compare the most reactive between W and H. Give a reason. c) select one element which forms a highly soluble carbonate​

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

1. list three scientific reasons cockroaches may fly.

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?