Study of the universe's origins

Carbon-14 is an isotope used in carbon dating. The nucleus becomes Nitrogen-14 through beta decay. Its half-life is 5370 years. We can use this information to think about the large sample of 14C that is part of all organic matter.

Determine the mass of 4.1 x 1023 atoms Cl. Answer in units of g

The equilibrium constant Kc for the reaction 2NO (g) + O2 (g) ⇌2NO2 (g) is 6.9*105 at 500 K. A 5.0 L reaction vessel at 500 K was filled with 0.056 mol of NO, 1.0 mol of O2, and 0.90 mol of NO2. Part A What is the value of Qc?

Glycogen, starch, and cellulose are all polymers of glucose. A) True B) False

One atom of silicon can properly be combined in a compound with a. three atoms of hydrogen. b. four atoms of calcium. c. two atoms of oxygen. d. one atom of chlorine.

What is the primary role of the United States Bureau of Counterterrorism? о to plan counterterrorist attacks to create active counterterrorism groups to encourage domestic counterterrorism activities to advance counterterrorism efforts in other

a phase change from B to A will represent a loss of energy. what is the term to describe this transition if B is the liquid phase

Why would the Linnaeus system not stay the same? Explain in your own words.

What element has these characteristics MgX2, Very low density, Highly reactive, Diatomic

What is the development of lymphocytes compared to other formed elements?