2. How many moles of Na2CO3 are available?
A. 566 moles
B. 1,132 moles
C. 13,030 moles
D. 890 moles

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium