Cecil is working with samples of chlorine (ci), oxygen (o), bromine (br), and silver (ag). the samples are all at room
temperature. which substance is most likely the most dense?
chlorine
oxygen
bromine
silver

silver

Explanation:

Silver is a metal at room temperature.

The physical state of matter can help us know which of these substances will be the most dense. Density deals the amount of substances per unit volume.

Solids are packed closely and have a definite and ordered arrangement of their atoms. From the list above only Silver is a solid at room temperature.

Bromine is a liquid at room temperature while chlorine and oxygen are gases at room temperature. Liquids and gases do not have more substances per unit volume compared to solids. Therefore, silver should be the most dense.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements