Although some substances we encounter in our routine lives are elements, most occur in the combined state

All elements on the modern periodic table are arranged in order of increasing

20cm³ of sulphuric acid reacts completely with excess zinc to form 0.1 mole of hydrogen gas. Calculate the molarity of the acid used.

Select the correct answer. Which element is more reactive than rubidium (Rb) ? A. aluminum (Al) B. cesium (Cs) C. strontium (Sr) D. beryllium (Be)

List the seven colors of the electromagnetic spectrum by temperature, beginning with the coolest

Two substances A and B react with each other in such a way that one-half of A remains after 25 min and one-fourth of A remains after 50 min. Doubling the concentration of B while keeping the concentration of A fixed doubles the rate of the reaction.

What is the atomic number of magnesium?

Explain how earth plates and lithosphere are related

What is the name for the Fe2 + cation? Iron ion Iron (II) ion Ironide Ferride ion

When designing an experimental investigation, why is it important to test only one variable?

Most fruit juices are a solution of water, sugar, and fruit-specific chemicals. in this solution, identify the solvent and solutes.