Titanium can be obtained from its oxide by the reaction shown here. When 42.0 g of TiO2 react with 11.5 gC, 17.8 gTi are obtained. What is the percent yield for the reaction? TiO2(s)+2C(s)→Ti(s)+2CO(g)

A) 77.6 %
B) 129 %
C) 70.7 %
D) 38.8 %

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer

What is the correct term for living the most sustainable life you can within your current circumstances?

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.