Acetylene (c2h2), an important fuel in welding, is produced in the laboratory when calcium carbide (cac2) reacts with water: cac2 (s) + 2 h2o (l) latex: \longrightarrow⟶ c2h2 (g) + ca(oh)2 (aq) for a sample of acetylene collected over water, total gas pressure (adjusted to barometric pressure) is 909 mmhg and the volume is 1,024 ml. at the temperature of the gas (22°c), the vapor pressure of water is 20.7 mmhg. how many grams of acetylene are collected? enter to 3 decimal places.

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.