According to VSEPR theory, which molecule is linear?

Reacting chromium (III) with carbonate produces what following ionic compound?

Chlorine is reacted with an unknown element (X). In some cases, chlorine reacts to make XCl and in other instances it reacts to make XCl2. Based on this information what is the likely identity of the unknown element X?

The most recently named element roentgenium, Rg, atomic number 111, has its last placed electron filling in what sublevel?

A student is given two rings- one gold and one platinum. If both rings have a volume of 10.0 mL, what is the difference in the mass of the two rings? Density (g/mL) Platinum  21.5 Gold  19.3

What trend is observed as the atomic numbers of halogens increase?  

What trend is observed as the atomic numbers of halogens increase?  

A 100.0 g sample of H2O is heated from 25.0°C to 35.0°C. What is the value of heat, q? Specific heat capacity of H2O = 4.18 J/

Which component of the reaction is the limiting reactant if 3.0 mol of P4O10 is mixed with 25 mol of carbon, C, and allowed to react? P4O10(s) + 10C(s) → 10CO(g) + P4(s)

Which component of the reaction is the limiting reactant if 3.0 mol of P4O10 is mixed with 25 mol of carbon, C, and allowed to react? P4O10(s) + 10C(s) → 10CO(g) + P4(s)