Which of the following redox reactions do you expect to occur spontaneously in the forward direction under standard conditions? Check all that apply. Ni(s)+Zn2+(aq)→Ni2+(aq)+Zn(s) Pb(s)+Mn2+(aq)→Pb2+(aq)+Mn(s) Correct! Ni(s)+Pb2+(aq)→Ni2+(aq)+Pb(s) Correct! Cr(s)+3Ag+(aq)→Cr3+(aq)+3Ag(s)

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Type the letter that represents the correct location for each particle type below.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025