Calculate the standard reaction entropy for the formation of 1 mol H2O(ℓ) from the elements in their most stable state at 298 K if S◦
H2O(ℓ) 69.91 J/ K·mol
H2(g) 130.68 J/ K·mol
O2(g) 205.14 J/ K·mol
Answer in units of J/ K · mol.

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

Explanation for basic character?

What is a difference between a mixture of elements and a mixture of compounds