It would be C
2 kg x 1000 g/kg x 1mol/18.02 x 6.03 kj/mol = 669kj
1. Synthesis or Combination reaction
2. Double replacement reaction
3. Single Replacement reaction
4. Decomposition reaction
Please mark as brainliest if this helped!
I believe the criteria responsible for deciding whether a heterogeneous mixture is a colloid or a suspension is whether the <span>particles remain suspended for an extended period of time. I hope it helps you.</span>