Koliko dm3 CO2 se izdvojilo u reakciji ako je reagovalo 5g Fe2O3 sa Na2CO3?

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

What is the maximum number of electrons that an atomic orbital can contain?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.