The number of protons must differ between two different elements
C - Identify the element because each element has it’s own spectra light , which are released when electrons return to ground state
Convert to moles first and then use the molar mass of copper to convert to grams
<span>Yes, the material will float because it has a lower density than that of water.
A material will float if it has a lower density than that of the liquid it's placed in. So let's first calculate the density of this new material.
Density is simply mass per volume, so doing the division.
2.0 g / 3.0 cm^3 = 0.67 g/cm^3
The density of water is 1.0 g/cm^3 and since the density of the new material is less at 0.67 g/cm^3 it will float.</span>
