Answer:hydrates
Explanation:Hydrate, any compound containing water in the form of H2O molecules
1) Na3PO4 (aq) + 3 KOH (aq) → 3 NaOH (aq) + K3PO4 (aq)
Displacement Reaction
2)MgF2 (s) + Li2CO3 (s) → MgCO3 (s) + 2 LiF (s)
Displacement Reaction
3) I don't know
4)2 RbNO3 + BeF2 → Be(NO3)2 + 2 RbF
5)2 AgNO3 (aq) + Cu (s) → Cu(NO3)2 (aq) + 2 Ag (s)
Answer:
-142.3 per mole, b) 2 O₃ (g)
Explanation:
2O₃ (g) → 3O₂ (g) ΔH = -284.6 KJ
According to the equation 2 mole of ozone yields 3 mole of oxygen gas and the enthalpy change = -284.6 KJ
a) enthalpy change per mole = -284.6 / 2 mole = -142.3 KJ per mole
b) The reaction is exothermic since the enthalpy change is negative meaning that the heat of reactant is greater than heat of product. If the heat of product is greater than heat of reactant meaning enthalpy change is positive; the reaction is endothermic. 2 O₃ (g) has higher enthalpy compared to 3 O₂ (g) since the enthalpy change is negative
Answer:
The basic principle behind hot air balloon physics is the use of hot air to create buoyancy, which generates lift. A hot air balloon consists of a large bag, called an envelope, with a gondola or wicker basket suspended underneath. A burner (with power typically of several megawatts) sits in the basket and is used to heat the air inside the envelope through an opening. This heated air generates lift by way of a buoyant force. The figure below shows a typical burner.
Explanation:
i dont know if i understood this question correctly but i hope this helps :)
Answer:
the 4th one is the corrent one