When water dissolves an ionic compound, which bonds are not broken in the process?

• Dipole-dipole bonds in the solvent

• Ion-Ion bonds in the solute

• Ion-dipole bonds between the solvent and solute

• All of the above

If vegemite has a heat capacity of 2.45 J g^-1 °C^-1, and peanut butter has a heat capacity of 1.75 J g^-1 °C^-1 and they are both left in the sun and absorb the same amount of energy, which of the following is true:

• Vegemite will heat up more than peanut butter

• They will heat up the same amount

• Peanut butter will increase in temperature more than vegemite, provided it starts at a higher temperature

• Peanut butter will increase in temperature more than vegemite, provided it starts at a lower temperature

• Peanut butter will increase in temperature more than vegemite, regardless of starting temperature

Calculate the starting temperature of a 425.00 g beer that absorbed +22 370 J of energy from someone's hand and ended up at 12.50 °C.

Answer to 1 decimal place, with no units like this: 35.2

In which of the following solvents will aminopropane have the highest solubility

• 
• 
• 
• 
• 

In a solution containing the following ions:

Na⁺, NO₃^-, Ca²⁺, PO₄^3-, CH₃COO^-

Which precipitate(s) are likely to form?

• Ca₃(PO₄)₂

• Ca₂(PO₄)₃

• Na₃(PO₄)

• Na(PO₄)₃

• No precipitates

In the following chemical equation, what precipitate(s) will form?

Fe(NO₃)₂(aq) + KCH₃COO(aq) →

• FeCH₃COO

• Fe₂CH₃COO

• Fe(CH₃COO)₂

• KNO₃

• None

In the following chemical equation:

V(NO₃)₅(aq) + NH₄I(aq) →

What is the charge on the vanadium ion?

• +3

• +5

• +1

• -1

• -5

In the following chemical equation:

V(NO₃)₅(aq) + NH₄I(aq) →

What precipitate will form?

• N(NH₄)₅

• NH₄V

• V₅I

• VI₅

• None

In a chemical equation, what does (aq) stand for and what does it mean?

• "aqua", it means the colour aqua

• "aquatic", it means there is a solvent involved

• "aquaprotic", it means multiple protons are involved

• "aqueous", it means the colour aqueous

• "aqueous", it means dissovled in water

In the following chemical equation, which number needs to go in front of the NH₄NO₃(aq) once it is balanced?

(NH₄)₃PO₄(aq) + Al(NO₃)₃(aq) → AlPO₄(s) + NH₄NO₃(aq)

• No number (which means 1)

• 2

• 3

• 4

• 5