How do redox-reactions work when the gain or loss of electrons is unknown?

Why does the Zr4 + ion exist?

Which of the following is an insoluble base? A. Ca (OH) 2 B. Sr (OH) 2 C. Ba (OH) 2 D. Cu (OH) 2 E. CsOH

Consider the reaction Au (OH) 3 + Hl - Au + 12 + H2O. Label the half-reactions as oxidation (use "O") or reduction (use "R"). 21 + 2 + 2e Aut3 + 3e → Au

Describe how Electronegativity is related to metallic character of an element

How many atp molecules are produced after electron transport and chemiosmosis?

Suppose a thermometer has marks at every one degree increment and the mercury level on the thermometer is exactly between the 25 and 26 degree Celsius marks. We should properly report the temperature measurement as:

What does the orbital tell you about the location of the electron?

If a 1.45 M solution has 2.43 g HCl dissolved, what is the volume of solution? (Change g Hl into mol using molar mass)

Which of the following describes a reaction that reaches equilibrium?

What happens to water during evaporation? A) It turns gas as it cools. B) It turns to liquid as it cools. C) It turns to solid as temperature decreases. Eliminate D) It turns to gas as the temperature increases.