He half-life of carbon-14 is 5730 years. what is the age of a fossil containing 1/16 the amount of carbon-14 of living organisms? explain your calculation.

Which is the next logical step in balancing the given equation? N2 + O2 → NO2 Place the coefficient 2 in front of oxygen and nitrogen dioxide. Place the coefficient 3 in front of oxygen and nitrogen dioxide. The equation is already balanced.

Is N2H4 polar, nonpolar, or ionic?

Identify the covalent compounds based on the names of the compounds. barium nitrate dinitrogen tetroxide boron trifluoride ammonium sulfate carbon tetrachloride barium chloride

Consider this statement: Earth is the only source of gravity in the solar system. Do you agree? Give your reasons.

Why are some ions such as chloride and sodium more stable than their atoms?

What is a magnetic reversal

Suppose you are assigned two unknowns, Compound A and Compound B. One unknown is a fat, while the other is an oil. You dissolve a small amount of Compound A in cyclohexane.

Describe the differences among primitive, igneous, sedimentary, and metamorphic rock, and relate these differences to their origins.

Beryllium has a nucleus composed of protons and neutrons. Given the data, how many protons are in a typical Beryllium nucleus? A) 3 B) 4 C) 5 Eliminate D) 9

Which of the following solutions is a buffer? Which of the following solutions is a buffer? a solution of sulfuric acid and sodium sulfate a solution of acetic acid and sodium sulfate a solution of acetic acid and sodium acetate a solution of