Calculate the enthalpy change (AH) in kJ for the following reaction.
2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s)
Use the enthalpy changes for the combustion of
aluminum and iron:
2Al(s) + O2(g) →→ Al2O3(s)
Al,,() AH = -1669.8 kJ
2Fe(s) + O2(g) → Fe, c(s) AH = -824.2 kJ

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

b

explanation:

mitosis

the atomic mass is the bottom number on the element.

-steel jelly

1. they vary with a higher number because boiling is way hotter than melting