<h2>Answer:</h2>
<u>The correct answer is Thermal Energy</u>
<h2>Explanation:</h2>
Thermal energy is the energy that comes from heat. This heat is generated by the movement of tiny particles within an object. The faster these particles move, the more heat is generated. Since the matchstick produces heat energy and heat is referred o thermal energy so it is the correct answer.
Answer:
A. Dipole-dipole forces; B. dipole-dipole forces;
C. ion-dipole forces; D. ion-dipole forces
Explanation:
A. HF
HF is a weak acid but a highly polar molecule. The strongest intermolecular force with water is an especially strong dipole-dipole force (hydrogen bonding) of the type
H-F· · ·H-OH and H₂O· · ·H-F
B. CH₃OH
CH₃OH has a highly polar O-H bond. The strongest intermolecular force with water is the especially strong dipole-dipole force (hydrogen bonding):
CH₃(H)O· · ·H-OH and CH₃O-H· · ·OH₂
C. CaCl₂
CaCl₂(s) ⟶Ca²⁺(aq) + 2Cl⁻(aq)
CaCl₂ separates into hydrated ions in solution. The strongest intermolecular force with water is ion-dipole attraction.
Ca²⁺· · ·OH₂ and Cl⁻· · ·H-OH
D. FeBr₃
FeBr₃(s) ⟶Fe³⁺(aq) + 3Br⁻(aq)
FeBr₃ separates into hydrated ions in solution. The strongest intermolecular force with water is ion-dipole attraction.
Fe³⁺· · ·OH₂ and Br⁻· · ·H-OH
6.270/56.11 = 0.1117447870 /0.1117.. ≈ 1
19.67/44.01 = 0.446943876 /0.1117.. ≈ 4
8.055/18 = 0.4475 /0.1117.. ≈ 41 mole of compound forms 4 moles of both CO2 and H2O, so the empirical formula will be C4H8
As this gives molar mass of 56.11, this is also the molecular formula
This could be cyclobutane, or butene
