Which has more energy, 500g of ice or 500g of steam

PF3 has a dipole moment of 1.03 D butBF3 has a dipole moment of zero. Explain thedifference.

Given the balanced equation: Fe (s) + CuSO4 (aq) FeSO4 (aq) + Cu (s) What total mass of iron is necessary to produce 1.00 mole of copper? A) 26.0 g B) 55.8 g C) 112 g D) 192 g

What is a conjugate base?

What is the relationship between synthesis and decomposition reactions? They are the same process. They are reverse processes. They create the same products, although the reactants may be different. They both start with two elements or compounds.

Which of the following is called Energy of activation or Eact? A) The energy released during an exergonic reaction. B) The additional energy required for reactions to occur spontaneously. C) The energy consumed during an endergonic reaction

When DNA is replicated, it is necessary for the two strands to "unzip" temporarily. Choose which bonding type is most appropriate for holding the strands together in this way.

Match the grams of each element or compound to the corresponding number of moles of that element or compound. 1. 20.0g H 0.011 moles 2. 0.50 g Na 20.0 moles 3. 2.0 x 102 mg H2O 0.022 moles

Select the name of the period 4 transition element that forms a 3 + diamagnetic ion.

What is the mass of 1.70 moles of magnesium chloride, MgCl2?

A 42.0g sample of compound containing only C and H was analyzed. The results showed that the sample contained 36.0g of C and 6.0g of H. Which of the following questions about the compound can be answered using the results of the analysis?