Are These Multiple Choice Reactions Correct?

AI Thread Summary
The discussion focuses on identifying the correct types of chemical reactions for given equations. The reactions provided include synthesis, single replacement, double replacement, combustion, and decomposition. Participants are reminded to show their work for textbook problems and to post in the appropriate section for homework queries. The correct matches for the reactions were confirmed as follows: the first reaction is synthesis, the second is single replacement, the third is combustion, and the fourth is decomposition. Overall, the thread emphasizes the importance of following forum guidelines and providing clear representations of chemical equations.
BittersweetLove
Messages
19
Reaction score
0
Match the reaction type with the reaction:

AnSwErS:

A) Synthesis
B) Single Replacemet
C) Double Replacement
D) Combustion
E) Decomposition


Problems:

1. 2Na + Cl2 2NaCl

2. 4NaF + O2 2Na2O + 2F2

3. 4LiH + AlCl3 3LiCl + LiAlH4

4. 2H2O 2H2 + O2
 
Physics news on Phys.org
BSL, please read the posting guidelines (see "Rules" at the top of the page).

We can not help with textbook problems unless you first show some effort. And henceforth, please post such questions in the Homework & Coursework section - Other Sciences.
 
Oh sorry...I actually have already solved these...I just wanted to make sure they were correct and if I didn't get any replies, oh well. Didn't mean to break any rules.
 
If all you need is to verify your answers, please post what your choices were and someone will be able to take a look and tell you how you did.

Also, it is customary to separate the left and right sides of an equation by some representative symbol. Something like ---> is commonly used.
 
Can someone tell me if these are correct please? 8)


Match the reaction type with the reaction:

Problems:

1. 2Na + Cl2---> 2NaCl

2. 4NaF + O2----> 2Na2O + 2F2

3. 4LiH + AlCl3---> 3LiCl + LiAlH4

4. 2H2O ---->2H2 + O2


AnSwErS:

1. A) Synthesis
2. B) Single Replacemet
NONE C) Double Replacement
3.D) Combustion
4. E) Decomposition
 
Thread 'Confusion regarding a chemical kinetics problem'
TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
Back
Top