The half-life of 131I is 8.021 days. What fraction of a sample of 131I remains after 24.063 days

Solid lithium metal and diatomic nitrogen gas react spontaneously. give the balanced chemical equation (including phases) that describes this reaction.

a gas sample occupies a volume of 140 mL at a temperature of 296 K and a pressure of 98.2kPa. how many moles of gas are there? show work.

What can occur if more rainfalls or snow melts than a ground can absorb or streams and ponds can hold?

I am a metal, a transition metal, have the smallest atomic radius in my group, and I have 6 valence electrons. What element am i?

You transfer a sample of a gas at 17°C from a volume of 5.67 L and 1.10 atm to a container at 37°C that has a pressure of 1.10 atm. What is the new volume of the gas?

When a solution is considered to have a high concentration of hydrogen ions (H+) is also considered to be? a) acidic b) basic c) neutral d) hot

Why does the sky change colors at sunset? 1 because the sun changes colors 2 because the atmosphere reflects colors 3 because long wavelengths are scattered the least 4 because short wavelengths are scattered the least

Consider the reaction N2 (g) + 3 H2 (g) 2 NH3 (g), which is exothermic as written. What would be the effect on the equilibrium position of adding N2 (g) ?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Calculate the number of liters in 3.25 g of ammonia