The number of protons in an atom is equal to the number of

How does the molecular property of water affect its cohesive properties?

In a redox reaction, why does an element's oxidation number decrease?

Duncan takes a break from studying and goes to the gym to swim laps. If swimming burns 6.55*105 calcal per hour, how many kilojoules does swimming burn in that same amount of time? In other words, convert 6.55*105 calcal to kilojoules

In a sample of which of these elements would you expect to find a sea of electrons surrounding nuclei?. A) Ar. B) Au. C) O. D) N.

What is the measure of the efficiency of a chemical reaction? percent yield annual yield actual yield theoretical yield

A student mixes 0.50 L of 0.0020 M Ba (NO3) 2 solution with 0.50 L of 0.0080 M Na2SO4 solution. Which equation shows the proper set-up to calculate molar concentration of Ba2 + ions in the new solution? (0.0020 M) (1 L) = (? M) (0.0020 M) (0.

A silver block, initially at 58.5°C, is submerged into 100.0 of water at 24.8°C in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 26.2 °C. What is the mass of the silver block?

If joey ran 28 meters in 4 seconds, then his velocity was m/s

We have seen that ions in aqueous solution are stabilized by the attractions between the ions and the water molecules. Why then do some pairs of ions in solution form precipitates?

Does (NH4) 2SO4 and AgNO3 form precipitate