An unknown substance with a mass of 120g absorbs
VUOJ while undergoing a temperature increase of 15°.
What is the specific heat of the substance?
m
AT =
Ic=
endothermic or exothermic?

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.