When an atom of phosphorus becomes a phosphide ion (P3-), the radius

(1) decreases

(2) increases

(3) remains the same?

What is the trend in copper production over the past 100 years

A glass object receives a positive charge by rubbing it with a silk cloth. In the rubbing process, have pro - tons been added to the object or have electrons been removed from it?

If 0.092J of heat causes a 0.267 degree C temperature change, what mass of water is present?

Calculate the ph of a solution containing 0.0451 m potassium hydrogen tartrate and 0.028 m dipotassium tartrate. The ka values for tartaric acid are 9.20 * 10-4 (ka1) and 4.31 * 10-5 (ka2).

What type of element is calcium

How much MnO2 (s) should be added to excess HCl (aq) to obtain 295 mL of Cl2 (g) at 25 °C and 735 Torr?

Why do people describe water as a universal solvent

What is litmus paper used for? To indicate if all the reactants have been used up to determine if a chemical reaction has occurred to determine pH to detect the presence of water

You open your lemonade stand with 100 lemons, 5 bags of sugar containing 6 cups each, and 10 gallons of water (16 cups per gallon). Which statement is NOT true about the production of lemonade in your stand?

For the complete combustion of 5.6dm3 of a gaseuos hydrocarbon CxHy. 28.0dm3 of oxygen gas were used, 16.8dm3 of CO2 gas and 18.0gof liquid water were produced all gases measurement were made at stp. Determine the chemical formula of the hydrocarbon