A manufacturer selected a metal to use in producing a lightweight button for clothing. A metal
that has a density of 2.71 g/cm was selected.
Metal Data
Metal
Mass (9)
22.1
42.0
9.32
8.13
Volume (cm)
3.00
4.00
5.00
3.00
3
Which of the metals was selected?

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges