1 point
45. The position on the periodic table helps scientists predict the number
of electrons an atom will gain or lose during ion formation. According to
the Periodic Table of Elements, which element is most likely gain three
electrons when it forms an ion? *
O
Calcium
Mercury
Phosphorous
Aluminum

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Can you match these to the correct definition