October 31, 2014

Homework Help: Chemistry

Posted by mysterychicken on Friday, October 29, 2010 at 3:21pm.

35. In a calorimeter, the energy content of a substance is calculated from a measure of the temperature change in a known mass of
a. iron
b. air
c. water
d. steel

36. A decrease in the reactant concentration, per unit time, in a reaction is a measure of the
a. heterogenous reaction
b. reaction rate
c. overall reaction
d. reaction mechanism
Not sure..


Answer this Question

First Name:
School Subject:

Related Questions

Physics 2 - An unknown substance has a mass of 0.125 kg and an initial ...
Chemistry - Energy and Change rev (help+check) - so i was revising for a test ...
chemistry - substance X has a molar mass of 107.6 g/mol. When 2.50 g of ...
chemistry - Substance x has a molar mass of 107.6 g/mol. when 2.50 g of ...
Chemistry - Why would you subtract the heat of a calorimeter when calculating ...
Chemistry - I need someone to check these True or False questions for me please...
chemistry - Can someone please tell me the tools needed to measure amount of ...
Chemistry - H2O (l) requires the largest amount of energy to raise the ...
AP Chemistry - THe following reaction is carried out in a bomb calorimeter: 4NH3...
Chemistry - if 3.00 g of iron metal are reacted in a calorimeter with a heat ...