Al + 02 = A1203
1. What coefficient values will balance the reaction shown above? (Show your work for each set
of coefficients.)
A 2,3, 2
B 2, 1, 1
C 4,3,2
D 4,2,3

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

What three things determine the shape and size of a puddle when water is poured out onto a surface

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8