Using the Arrhenius concept of acids and bases, identify the Arrhenius acid and base in each of the following reactions: KOH(aq)+HNO3(aq)→KNO3(aq)+H2O(l) NH3(g)+HCl(g)→NH4Cl(s)

take a better picture and ill do it

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

3 hours because it is a decent distance.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.