A student makes measurements to calculate the density of a rod of aluminum to be
3.26 g/cm3. If the actual density of the aluminum rod is 2.70 g/cm3, what is the
percent error?
15.5%
5.93%
94.41%
20.7%

3. if the dartboard below is used to model an atom, which subatomic particles would be located at z?

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

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?