2ch2(g) + 50 (g) → 400/(g) + 2 h2o(g)
acetylene gas can burn at a temperature of approximately 3000°c. the equation for the complete
combustion of acetylene is shown in the figure.
how much co, in grams would be produced by the complete combustion of 50.0 g of acetylene (c,

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.