When fibers are found at a crime scene, they become valuable only when the forensic scientist can determine where the fiber came from.

true or false?

The reaction of solid calcium carbonate with hydrochloric acid is a heterogeneous reaction (a solid with a liquid). The rate law for this reaction will have the following form: rate = k[HCL]n.

What is the pressure exerted by a 0.500 mol sample of nitrogen in a 10.0 L container at 20°C? A 1.2 kPa B 10 kPa C 0.10 kPa D 120 kPa

How many grams of co2 are in 6 mol of the compound and the units?

Which best decribes a similarity between power plants that use water as an energy source

How could you identify a chemical reaction as being single replacement, simply by looking at it?

Which element has an ion that is smaller than an ion of calcium?

Which factor is responsible for the weak attraction between diatomic molecules of the halogens (group 7A) ? A) Hydrogen bonding B) Ionic bonding C) Dipole interactions D) London dispersion forces

Which is the correct equation for refractive index?

Alcl3) and lithium sulfate (li2so4) (note - this is a double replacement reaction. you need this information to predict the products of the reaction)

Which type of bond is present in hydrogen sulfide (H2S) ? The table of electronegativities is given.