Homework Help: biology

Posted by ballamoney1 on Thursday, April 15, 2010 at 11:40am.

Which of the following is true about the relationship between energy and chemical reactions?

Activation energy is required for a chemical reaction to occur.
Activitation energy is not necessary in a chemical reaction which releases energy.
Chemical bonds are always broken by energy absorption in a chemical reaction.
Energy-absorbing reactions don't occur in chemical reactions.

biology - Anonymous, Thursday, April 15, 2010 at 11:46am
I know that Eact is needed to obtained first before a chemical rxn can occur... the nrg absorption parts, I don't know.
~Terry

Answer this Question

Related Questions

Biology - 9. a molecule shaped like a spiral staircase (double helix) is a ...
Biology - 9. a molecule shaped like a spiral staircase (double helix) is a ...
The Nature of Chemical Reactions - 1. Molarity is to moles of solute over liters...
Chemistry - True or false 1. The energy of a collision between atoms or ...
Chemistry - During activation energy... A. A catalyst lowers the activation ...
help!!! - How do enzymes reduce the energy of activation of biochemical ...
biology - What are endergonic reactions? How can endergonic reactions proceed in...
Biology - We extract energy from macronutrients primarily from which of the ...
reactions! - metabolic reactions as exergonic or endergonic what? Food has ...
chemistry - The reaction: A + 3 B = D + F was studied and the following ...

For Further Reading

First Name:
School Subject:
Answer: