30 calculate the specific gravity of the rose quartz. the procedure is as follows: remember, the density of water is 1.0g/cm3, so the mass of water equals the volume of the rose quartz. find the density of the rose quartz. find the specific gravity of the rose quartz. specific gravity = density of of water. what are the units for specific gravity?

The density of the quartz is the ratio of its mass to its volume. The specific gravity of the quartz is the ratio of the density of quartz to the density of water.

What is specific gravity?

The term specific gravity refers to the ratio of the density of an object to the density of an equal mass of water.

To obtain the density of quartz, a quartz sample is weighed on a balance to obtain its mass. A known volume of water is added to a measuring cylinder. The quartz sample is then added and the volume of liquid displaced is measured. This is the volume of the quartz.

The density of the quartz is the ratio of its mass to its volume. The specific gravity of the quartz is the ratio of the density of quartz to the density of water.

Learn more about specific gravity: link

Icant see the pictures 

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na