What is the ratio of molecules in the chemical equation below N2+3N2-> 2NH3

4:2

2:2:1:3

1:3:2

2:1:2

Which is the name of o3?

Butane is used as a fuel in camping gas stoves. 100 cm3 of butane is burned in excess oxygen. calculate the volume of carbon dioxide produced at r. t. p

Which of the following is true regarding phase changes? A. Condensation is the reverse of evaporation. B. Melting is the reverse of deposition. C. Freezing is the same as sublimation. D. Sublimation is the same as boiling.

Which of these elements has atoms that would have the most difficulty forming a covalent bond with oxygen (O) ? A. O B. S C. N D. Ne

Explain in terns of atomic structure why barium has a lower first ionization energy than magnesium.

A gas has a volume of 30 L at 105 kPa. What pressure is required to compress the gas to 21 L?

Using special equipment which layer of the sun atmosphere is visible during a total solar eclipse

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3