1.) What type of reaction releases energy and gives off heat?
2.) What accelerates chemical reactions?
3.) Iron and Oxygen form Rust. What kind of reaction is this?
4.) Balance the following equation:
_MnO2 + _HCl --> _MnCl2 + _Cl2 + _H2O
What is the coefficant of HCl?
2006-06-24 14:12:29 · 7 answers · asked by just me 2 in Science & Mathematics ➔ Biology
1) exothermic reaction gives off heat
2) a catalyst speeds up a rxn
3) chemical reaction
4) 1 + 4 --> 1 + 1 + 2
coefficiant of HCl is one
2006-06-24 15:07:31 · answer #1 · answered by kyuketsuki084 3 · 0⤊ 1⤋
Actually, #3 is more specifically an oxidation- reduction (redox) reaction.
And catalysts are not the only things that increase reaction rate. Increasing the temperature (for and exothermic rx), increasing the concentrations of reactants, and decreasing surface area can all accelerate chem rxs.
2006-06-24 22:40:59 · answer #2 · answered by Anacapa 2 · 0⤊ 0⤋
Exothermic
A catalyst (proteins can be catalysts)
Redox
1
2006-06-25 01:59:23 · answer #3 · answered by Rachel B 2 · 0⤊ 0⤋
2) catalyst.
2006-06-24 21:38:49 · answer #4 · answered by SweetTina 3 · 0⤊ 0⤋
i'm pretty sure that if your teacher found out you were doing your homework this way, it would be considered cheating.
2006-06-24 22:22:35 · answer #5 · answered by my_nickname 2 · 0⤊ 0⤋
this is more chemistry than biology, but anyway, maybe you should do your own work so you actually learn something.
2006-06-24 22:54:05 · answer #6 · answered by Jen 3 · 0⤊ 0⤋
Do your own damn homework!
2006-06-24 21:17:31 · answer #7 · answered by advancedmaster 5 · 0⤊ 0⤋