if the charcoal from an ancient fire contains 1/512 amount of carbon-14 as a living tree, how long ago did the fire occur? the half life of carbon-14 is 5730 years

Identify whether this describes heat or temperature. Definition: a form of energy

Is hydrogen a solid liquid or gas?

Is o-toluic acid soluble in ether, NaOH?, Is Napthalene soluble in NaOH?

Will helium, neon, or argon atoms react with other atoms?

You could also graph decay time (in seconds or minutes) vs. number of radioactive nuclei. How would this graph differ from the graph of cycle number vs. number of radioactive nuclei? Check all that apply. The graph would flip over.

Which of the following substances is NOT an alloy? a. Brass b. Bronze c. Stainless steel d. Tin

Relate the statement:"you cant get something for nothing" to the law of the conservation of mass

Which compound is sometimes found in fire extinguishers

The volume coefficient of thermal expansion for gasoline is 950 * 10-6 K-1. By how many cubic centimeters does the volume of 1.00 L of gasoline change when the temperature rises from 30°C to 50°C?

An element's most stable ion forms an ionic compound with bromine, having the formula XBr. If the ion of element X has a mass number of 85 and has 36 electrons, what is the identity of the element?