How many pi bonds are there in NO3-

Which model allows a student to determine the total number of electrons in an atom and the electrons within each energy shell, but not the distribution of electrons within subshells?

A mixture is made by mixing 50.0 ml of 0.200 m hcl and 50.0 ml of water. what is its ph?

If three electrons are available to fill five empty 3d atomic orbitals, how will the electrons be distributed in the five orbitals?

Is mixing salt into water an example of a chemical synthesis reaction?

A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HNO3 in a coffee cup calorimeter. If both solutions were initially at 35.00°C and the temperature of the resulting solution was recorded as 37.

Which two of Earth's spheres interact when mountain glaciers melt due to hot lava released by a volcano? Cryosphere and geosphere Cryosphere and hydrosphere Geosphere and biosphere Hydrosphere and biosphere

The reaction 2CH4 (g) ⇌C2H2 (g) + 3H2 (g) has an equilibrium constant of K = 0.154. If 6.70 mol of CH4, 4.05 mol of C2H2, and 10.05 mol of H2 are added to a reaction vessel with a volume of 5.20 L, what net reaction will occur?

What is harder to pull apart a sodium ion from a chloride ion or a potassium ion from a chloride ion?

Under what conditions is the ideal-gas assumption suitable for real gases?

How is the energy released by an earthquake related to its moment magnitude?