Ask a New Question

H2O (liquid) yields H2O gas

H2O (liquid) yields H2O gas delta H= +44kJ.How much heat is evolved when 9.0 grams of water vapor is condensed to liquid water?
1. 1 answer
2. asked by Katelyn
3. 3,633 views
I know mathematically I can write chemical reactions this way but in chemistry can I if now why?2K + 2(H20) yields 2KOH + H2 2(K
1. 1 answer
2. asked by Kate
3. 532 views
Just wanted to check this. Are the two half reactions for 2K+CaSO4 yields K2SO4+Ca1K yields K^+1 + e^- and Ca^+2 + e^-2 yields
1. 1 answer
2. asked by Angeline
3. 603 views
MgSO4+2K yields K2SO4+Mg. Would the oxidation reaction be 2K yields K2+e-2?And would the reduction be MG+e- yields Mg? Thanks.
1. 2 answers
2. asked by Narasaq
3. 886 views
Hey guys! I'm really lost on this equation. Any help?H2(g) yIelds 2H(g) Delta H = 436 kJ/mol F2(g) yields 2F(g) DeltaH = 158
1. 1 answer
2. asked by Allie
3. 685 views
Scientists are working with a liquid that is made of only one type of atom. Which statement correctly describes this liquid?The
1. 1 answer
2. 35 views
cientists are working with a liquid that is made of only one type of atom. Which statement correctly describes this liquid?The
1. 1 answer
2. 38 views
The red-ox reaction is MgSO4+2K yields K2 SO4+Mg. I thought the oxidation reaction is 2 k yields K2(subscript) + e^-2. I said
1. 1 answer
2. asked by Narasaq
3. 916 views
consider the following changes at constant temperature & pressureH2O(s) --yields-- H20(l); Delta H1 H2O(l) --yields-- H2O(g);
1. 1 answer
2. asked by marcus
3. 2,072 views
Three liquids of differing densities are studied. Samples of liquid 1 and liquid 2 are placed in a container together. Liquid 1
1. 1 answer
2. asked by Dulce
3. 972 views