1) Calcula y expresa el resultado en litros 1 20 l + 55 dl +40 dal =

2 20 cl + 30,2 ml+ 5 l =

3 33,2 dal + 50 hl + 1 kl =

4 50 hl + 20,8 hl + 0,3 kl =​

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

Why can water dissolve many ionic compounds

Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below. potassium (k): 1s22s22p63s23p64s1