Question

When you heated sodium hydrogen carbonate, you decomposed it into sodium oxide, water vapor, and gaseous carbon dioxide. I have no idea how to do this. please help

Answer 1

http://ohs.olentangy.k12.oh.us/teachers/keith_frase/chemistry_HW_calendar/S070CCE49-071634BC.0/

Answer 2

what do the subscripts, th, i and ch stand for?

Answer 3

i just know that ch is chemical, the rest idk. @aaronq

Answer 4

th = thermal

i =?

i'm not sure what the circle thing is for either. did they not give you an example?

Answer 5

yass but i still don't understand it

Answer 6

@Somy to the rescue

Answer 7

post the example they gave

Answer 8

link doesnt work

Answer 9

it works for me @Somy

Answer 10

doesnt work for me T_T

Answer 11

@aaronq sowwy T_T take over

Answer 12

sorry for bad quality, she did this one in class

Answer 13

@aaronq

Answer 14

@Somy i have a picture

Answer 15

whats Eph?

Answer 16

phase energy

Answer 17

so u need to draw same diagrams for this current q?

Answer 18

the same graphs that the pic shows is what i have to do for my question

Answer 19

current q? @Somy

Answer 20

meaning this sodium question of yours

Answer 21

yass

Answer 22

usually in decomposition reactions there is a pretty high requirement of energy input into reaction
so this reaction is rather Endothermic which is the opposite of Exothermic in your picture

Answer 23

ok, so how do i graph this?

Answer 24

hmmm i'll try to explain
so you have a reactant here which is sodium hydrogen carbonate
and i am thinking its endothermic reaction so there is high requirement of input energy to start the reaction and then when the product is formed - some energy is released
But energy released will be less than input energy

Answer 25

i u draw the graph now?

Answer 26

can u*

Answer 27

i dont know the number im supposed to graph it on or anything, she just taught us today and expects the rest done

Answer 28

u dont need any numbers here
only thing u need to know is whether there is less or more energy released as compared to input energy

Answer 29

on the pic there is 2 graphs n 2 circles. i need those things, but idk how to graph it