In the following reaction, if you wanted to produce more hydrochloric acid (HCl), what should you do? (2 points) 4HCl + O2 ⇄ 2H2O + Cl2

a. add more H2O
b. add more O2
c. remove H2O
d. remove Cl2

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

What are the similarities of physical and chemical change ?

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.