Why does a hot air balloon rise when the air inside it is heated

Lewis dot structure for F2 (g)

1. What is the benefit of writing a net ionic equation instead of a formula equation? A The net ionic equation shows the spectator ions in the reaction. B The net ionic equation shows a balance of atomic mass of each molecule.

How can you drop two eggs the fewest amount of times, without them breaking?

Calculate the volume od a CO2 cartridge that has a pressure of 850 PSI at a temperature of 21ºc the cartridge contains 0.273 mol of CO2

How many grams of CO₂ can be produced from the combustion of 2.76 moles of butane according to this equation: 2 C₄H₁₀ (g) + 13 O₂ (g) → 8 CO₂ (g) + 10 H₂O (g)

If you change the state of something, say, liquid to solid, is it a physical or chemical change?

What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Tina has a sample of gaseous water at a temperature of 400 C and a pressure of 4 atm. If Tina increases the pressure to 200 atm, will the gaseous water liquefy? Why or why not?

Label the molecular shape around each of the central atoms in the amino acid glycine. hint

Which has more atoms, 2moles of carbon or 2 moles of aluminum