PLEASE HELP!!! 1. How many moles of oxygen gas would be needed to react with 155 g of propane gas, C3Hg, in a combustion reaction? a C3H8 (g) + 502 (g) -> 3CO2 (g) + 4H20 (1)

2. How many grams of Nitrogen monoxide (NO) will be produced from 2.50 g oxygen (O2)?
4NH3 + 5O2 -> 4NO + 6H2O

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water