Which answer choice best explains why atoms of carbon-14 (C-14) are unstable?

Secure a gallon metal can. Remove the lid and heat the can for five minutes with a Bunsen burner. Carefully replace the lid to seal the can. Remove the can from the flame and run cold water over the can.

What is the concentration of hydronium ion in a 0.0400 M solution of H2SO4?

Describe the processes that likely led to the formation of the rock and the canyon wall?

What is the most likely explanation for the change in population that occurred at 1.5 years?

How many milliliters of 0.02 M HCl are needed to react completely with 100 mL of 0.01 M NaOH? A) 200 mL B) 100 mL C) 75 mL D) 50 mL E) 25 mL

What is the mass of 2N at 0.2829 atm 1.35 L and 25°C

If an ice cube melts at 0ºC but water also freezes at 0ºC, what is the difference between melting and freezing in terms of ... 8. The energy involved in the phase changes and 9. The motion of the particles of the substances during the phase changes?

What is the element Ar classified as in the periodic table?

Using the clausius clapeyron equation determines the heat of vaporization from experimental measurements of vapor pressure. the vapor pressure of dichloromethane is measured as a function of temperature and the results are tabulated.

Why is it important for people to understand how to properly dispose of waste in a watershed?