Answer:
1.40
Explanation:
8.45× × = 1.40318 ≈ 1.40 mol
CH₄ + 2O₂ —> CO₂ + 2H₂O
using this eqn, find the values through your data booklet and take bond break - bond form to find enthalpy change
Basalt is more dense than granite because granite is made of lighter mass.
Chemical indicator, any substance that gives a visible sign, usually by a color change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution.