Steam condenses into liquid water (the steam is the system). In this process Group of answer choices the heat leaves the system and is considered an endothermic process the heat enters the system and is considered an exothermic process the heat enters the system and is considered an endothermic process the heat leaves the system and is considered an exothermic process

Why are pipes bursting in the in extremely cold weather?

Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.