consider the following changes  a- N2 (g) ->N2 (l) b- C0(g) + H2O(g) ->H2 (g) + C0 2(g) c- Ca 3  P2(s) + 6H2 O(l) -> 3Ca(OH)2 (s) + 2PH3 (g) d- 2CH3  OH(l) + 302 (g) -> 2C0 2(g) + 4H2O(l) e- I2(s) -> I2(g)   at constant temperature and pressure, in which of these changes is word done by the system on the surroundings? by the surroundings on the system?in which of them is no work done?

Fill in the blanks for each of the chemical compounds

What is the relationship between the given pairs of compounds? 1. HO 2. OH OH OH OH OH Br NH₂ དང༌ མེད ཡིན ཀྱད པ ས དང པ ན བྱ HO HO Br OH 3. Pr

Identifying organic functional groups compound || C CH3 - O family - - CH₂- CH3 ester CH3 | CH3 — O — C-H CH₁₂ 0 = C - CH₂- CH3 OH ☐ ☐ 0 = CH - CH2-CH3 ☐

CH 3 CH 3 + Br₂ + HBr CH3 +H2/Pt + KMnO4 + H₂O/H+

K²=32 2016 #H HE M = PENNS 00.5 = [14] (MOOS = [V] [MOLO FAVOROins nos 40241 23 enorpos 09 10 1011 3 MUNGHOUD? 1D 21 NT A 00091 907 559100 21 no inw 1/09 2000 200 DAD91 SNT 8 SNT.S (s) + 6C1₂ (9) = 4P(|3 (9) P₁ Express the equalibrium constant for this reaction

Write the molecular formula for the following molecule.    Use the format CxHyOzCxHyOz.  For example, if the molecule has 12 carbons 24 hydrogens and one oxygen, enter C12H26O.  Do not include spaces.

Give the noble gas shorthand notation (ex: [He] 2s2 2p1) for Br       Give the noble gas shorthand notation (ex: [He] 2s2 2p1) for Ca+2       Give the noble gas shorthand notation (ex: [He] 2s2 2p1) for Zn

HW 2.5 Blackb X MindTap - Cengage Learnin X C 5-3) In the laboratory a stuc x 5735112480241329813180832311&elSBN=9781305862883&id=1774598910&snapshotld=33... ✩ Is this reaction endothermic or exothermic? Use the References to acc s important values if needed for this question. When H₂(g) reacts with Cl₂(g) to form HCI(g) according to the following equation, energy is released into the surroundings. H₂(g) + Cl₂(g) →→→2HCI(g) Submit Answer References What is the sign of AH for the reaction? Would the energy of the surroundings increase or decrease as a result of this process? Bb My Blackboard Content - alpy and Representing Energy Change: This is group attempt 1 of 10 MacBook Air Autosaved at 8:59 PM Q Searc Regenerate G

You are a forensic scientist. You are investigating a murder involving poison. The victim was poisoned with a compound called di-chlorobenzene, whose formula is C6H4Cl2. Autopsy results show that the victim’s body contained about 27.5 g of the poison, but the actual amount could have been slightly higher due to tissue absorption. The main suspect is his wife, Suzanne, who works as a chemistry professor. Records show that she purchased 15 g of benzene (C6H6) two days before the murder. Benzene is one of the compounds use to make the poison. She claims she was using it to make methyl benzene (C6H5CH3), an innocuous compound, for use in her lab. She shows you the bottle of methyl benzene she claims to have made. It contains 25 g of methyl benzene. To produce di-chlorobenzene, the reaction is:       Cl2(g)  +  C6H6(l) ⟶⟶ C6H4Cl2(l) + H2(g) To produce methyl benzene, the reaction is:          CH4(g) + C6H6(l) ⟶⟶ C6H5CH3(l) + H2(g)   Use stoichiometry to solve this case. Be sure to show all…