Which of these elements is not a liquid at room temperature? ASAP 1. Bromine
2. Mercury
3. Nitrogenen
4. Gallium

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

Which of the following units is not an official si unit

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.