How many moles of sodium (na) do you have in a sample of 9.8 × 10^23 atoms na?
0.61 mol na
1.6 mol na
5.9 mol na
16.3 mol na

If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms

Stage in which a typical star has completely stopped fusion

How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.