What is the frequency of individuals with doctorates work in the field of physical science

Industrially, vanadium metal, which is used in steel alloys, can be obtained by reacting vanadium (V) oxide with calcium at high temperatures: 5Ca + V2O5 longrightarrow 5CaO + 2V In one process, 1.540 * 103 g of V2O5 react with 1.960 * 103 g Ca.

What information do you need to convert between moles and mass of a substance?

Cobalt-63 has a half-life of 5.3 years. If a pellet that has been in storage for 15.9 years contains 40.0g of Cobalt-63, how much of this radioisotope was present when the pellet was put into storage? Show work.

Determine the enthalpy for this reaction: 2naoh (s) + co2 (g) →na2co3 (s) + h2o (l) express your answer in kilojoules per mole to one decimal place.

How many naturally occurring elements are there

How many grams of HNO3 are produced when 60.0 g of NO2 completely reacts?

Why is NH3 considered a weak base?

List of 10 strong bases and acids?

When does cell growth occur

What is state symbols