A student made a list of reactions:
Fireworks exploding
Paper burning
Cellular respiration
How should the student title his or her list
A. Double replacment reactions
B. Single replacement reactions
C. Endothermic reations
D. Exothermic reations
Is the answer C?
Here are the correct test answers only one of his multiple choice answers were incorrect.
1. C
2. B
3. B, D
4. C
5. D
6. D
7. D
8. C
9. A
10. D
11. A
12. A, D
13. C
14. A, C
15. B
16. B
Their you go I will be back with questions 17-23 when my teacher grades them. Also I would appreciate if you used this to check you answers. Thank You have a good night.
Watching people on jiskha grow up is so sad
this is a mess
i agree
Absolutely. An endothermic reaction uses heat from the surroundings to make it go. An exothermic reaction gives off heat. Exploding fireworks, paper burning, and cellular respiration (such as humans breathing) all are examples of exothermic reactions in which heat is released by the chemical reaction. I remember these as follows:
An exothermic reaction (exo as in exit out) releases heat; an endothermic (endo as in coming in) reaction uses heat and we can even write an equation for them.
Exothermic is A + B ==> C + heat
Endothermic is A + B + heat ==> C