Comprueba que las siguientes reacciones químicas están ajustadas: 1. a) C3H8 + 5O2 → 3CO2 + 4H2O
2. b) 2Na + 2H2O → 2NaOH + H2
3. c) 2KOH + H2SO4→ K2SO4 + 2H2O
4. d) 2Cu(NO3)2→ 2CuO + 4NO2 + O2

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.

Bis the answerhope it !