If a scientist knows the relative age of a fossil, he can also know

the relative age of the rock where it was found.

how long the organism was alive.

how it became extinct.

the type of climate from which it came.

What is the pH of a solution in which the [OH-] = 1x 10-5?

How many unpaired electrons are in a sulfur atom

A thickness of a material is a factor that affects heat conductivity. Does heat flow faster through a thick or a thin piece of the same material? The surface area of a material is a factor that affects heat conductivity.

Which of the following is an oxidation-reduction reaction? a. HCl (aq) + NaOH (aq) → H2O (l) + NaCl (aq) b. Cu (s) + 2AgNO3 (aq) → Cu (NO3) 2 (aq) + 2Ag (s) c. AgNO3 (aq) + HCl (aq) → AgCl (s) + HNO3 (aq) d.

How many moles of water are produced when 3.45 moles of KMnO4 react? Give your answer to the nearest 0.1 moles

What are some disadvantages of incinerators?

What mass of potassium chlorate would contain 40grams of oxygen?

Identical forces act for the same length of time on two different masses. The change in momentum of the smaller mass is A) smaller than the change in momentum of the larger mass, but not zero. B) zero.

How many nuclei of 238 92 U 92 238 U remain in a rock if the activity registers 290 decays per second? (Note that the half life of Uranium-238 is 4.468x109 years)

A base can neutralize an acid. true or false