Why does the effective nuclear charge increase across a row of the periodic table?

Which would conduct electricity well in solution: a strong electrolyte, a weak electrolyte, both types of electrolytes, or neither type of electrolyte?

Which of the following is not a correct formula unit?. Select one:. a. MgO. b. Ca2N3. c. KCl. d. Li3N.

The rate of reaction for a hypothetical reaction was found to be 0.62 mol/L*s at 6°C. What would be the rate at 46°C?

How many protons and neutrons are in cl-37

The element in Group 14, Period 3 on the Periodic Table is classified as a (1) metal (3) metalloid (2) noble gas (4) nonmetal

If chlorine gas is bubbled through an aqueous solution of sodium iodide, the result is elemental iodine and aqueous sodium chloride solution. what kind of reaction took place?

In a solution such as salt water, the component that is dissolved is called the O solute O solvent O suspension O colloid

Which is the balanced chemical equation showing hydrogen peroxide (h2o2) decomposing into hydrogen (h2) and oxygen (o2) ? 1. h2 + o2 → h2o2 2. 2 h2o2 → 2 h2 + o2 3. h2o2 → h2 + o2 4. 2 h2 + o2 → 2 h2o2?

Assuming constant pressure, rank these reactions from most energy released by the system to most energy absorbed by the system, based on the following descriptions: A. Surroundings get colder and the system decreases in volume. B.

Zircon is a mineral with the empirical formula ZrSiO4. If all the zirconium is 90Zr, all the silicon is 28Si, and all the oxygen is 16O, what mass of oxygen is present in 10. g of zircon?