Potassium-40 has a half-life of 1.277 mc013-1.jpg 109 years. after 1.022 mc013-2.jpg1010 years, how much potassium-40 will remain from a 500.3-g sample? approximately 1.95 g approximately 3.91 g approximately 62.54 g approximately 71.47 g

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Which element is least likely to undergo a chemical reaction