Calculate the value of the thermodynamic decomposition temperature(Td)for the reaction NH4Cl(s)===NH
Calculate the value of the thermodynamic decomposition temperature(Td)for the reaction NH4Cl(s)===NH3(g)+HCl(g) at the standard state.
Calculate the value of the thermodynamic decomposition temperature(Td)for the reaction NH4Cl(s)===NH3(g)+HCl(g) at the standard state.
A、Establishing his credibility as a speaker.
B、Establishing goodwill with the audience.
C、Arousing the curiosity of the audience.
D、Stating the importance of the topic.
-I've some big news for you. You've been accepted as a member of our club. -_________That's great! |
[ ] |
A. Have I? B. Pardon? C. Congratulations ! D. Good idea ! |
A、Lantern Festival
B、Mid-Autumn Festival
C、Spring Festival
D、Dragon Boat Festival
A、/ʒ/
B、/j/
C、/dʒ/
D、/r/
某一级反应,若反应物浓度从1.0mol·L-1降到0.20mol·L-1。需30min,问:
(1)该反应的速率常数k是多少?
(2)反应物浓度从0.20mol·L-1降到0.040mol·L-1需用多少分钟?
(1)Na[AuCl4]______。
(2)[CoBr2(en)2]Br______。
(3)Na3[Ag(S2O3)2]______。
(4)H2[PtCl6]______。
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