Areaction of the form aa h products is second order with a rate constant of 0.169 l/(mol ∙ s). if the ini- tial concentration of a is 0.159 mol/l, how many seconds would it take for the concentration of a to decrease to 5.50 × 10−3 mol/l?

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

What are the theoretical properties of a gas at a temperature of 0 kelvin?

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?