Chapter 1, Problem 1.44ASP

(a)

Interpretation Introduction

Interpretation:

The reactants and product should be identified given the reaction.

Concept Introduction:

Chemical equation is a short representation of the chemical reaction.  The reacting substance are present in left side of the arrow and the products are present in right hand side of the arrow.  The conditions at which the reactions takes place is entered above and below the arrow.  By looking at a chemical equation we can identify the reactant and the product.

Physical change the substance is does not change it jest appearance only changed while the new substance is not created.in chemical changes where there is a chemical reaction a new substance formed and energy is either given off or absorbed.

(b)

Interpretation Introduction

Interpretation:

Interpretation:

Which substances are chemical compound and elements should be identified in the given reaction.

Concept Introduction:

Pure substance: The substance that has a uniform (or) homogeneous chemical composition throughout.

Mixture: It is blend of two or more substance, each of which retains its chemical identically.

Chemical formula: It is one elements combine to from a chemical compound, symbol are combined to produce chemical formula which use subscript to identify how many od atoms of each element are in a given chemical compound. For example the formula (H₂O) represents water it contains two hydrogen atoms combined with one oxygen atoms.