Some fossil bones contain 1/8 of their original amount of carbon-14. how many half-lives have passed? how old are the bones?

Why did giant planets have an easier time forming in the outer solar system

B. based on your research and observations, why do you think pure (distilled) water does not conduct electricity but tap water usually does?

You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O, and you find that 561 mg of CO2 is produced, along with 306 mm of H2O.

Solve for V2 when P1 = 1.0 atm V1 = 22.4 L and P2 = 4.0 atm This is a Boyle's law gas problem

The electrons in a bond between two iodine atoms (I2) are shared a. Equally, and the resulting bond is polar. b. Equally, and the resulting bond is nonpolar. c. Unequally, and the resulting bond is polar. d.

Which of the solutions below is a weak electrolyte? nacl (aq) koh (aq) hcl (aq) h2so3 (aq) all of these?

What is the gram formula mass of Ca (OH) 2

How much heat is absorbed by a 37g iron skillet when its temperature rises from 8oC to 24oC?

What chemical reaction occurs when an acid reacts with a base

Which of the following processes is spontaneous? A). building a house B). launching a satellite into orbit C). drops of dye dispersing in a clear solution D). cleaning your bedroom E). a ball rolling up a hill