How much heat is needed to raise 125 Grammys of iron from 5.0C to 33C ? The specific heat of iron is 0.450j/g•C

In all living cells dna controls cellular activities by

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.