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Chapter 3: Problem 55

Use the formation of water from hydrogen and oxygen to explain the following terms: chemical reaction, reactant, product.

Short Answer

Expert verified
In the context of the formation of water from hydrogen and oxygen: A chemical reaction is the process of hydrogen and oxygen converting to water. The reactants, hydrogen and oxygen are the starting substances of the reaction. The product, water, is the outcome of the reaction.

Step by step solution

01

Understanding the Chemical Reaction

A chemical reaction is a process in which one or more substances, known as reactants, convert to one or more different substances, known as products. In the formation of water, the chemical reaction can be illustrated by the following equation: \(2H2 (g) + O2 (g) \rightarrow 2H2O(l)\). This equation tells us that two molecules of hydrogen gas reacts with one molecule of oxygen gas to form two molecules of water.
02

Identifying the Reactants

The reactants are the substances that start a chemical reaction. These are the substances present before the reaction takes place, and they are shown on the left side of the chemical equation. For our example, the reactants are hydrogen (H2) and oxygen (O2). These substances react with each other to form a new substance which is water.
03

Identifying the Product

The product is the substance produced by a chemical reaction, formed from the reactants. It's what we have as a result of the reaction, and is shown on the right side of the chemical equation. In our example, the product of the chemical reaction between hydrogen and oxygen is water (H2O). Thus, after the chemical reaction, water is produced from hydrogen and oxygen.

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Most popular questions from this chapter

For many years the recovery of gold-that is, the separation of gold from other materials-involved the use of potassium cyanide: $$ 4 \mathrm{Au}+8 \mathrm{KCN}+\mathrm{O}_{2}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow 4 \mathrm{KAu}(\mathrm{CN})_{2}+4 \mathrm{KOH} $$ What is the minimum amount of \(\mathrm{KCN}\) in moles needed to extract \(29.0 \mathrm{~g}\) (about an ounce) of gold?

A certain metal oxide has the formula MO, where \(\mathrm{M}\) denotes the metal. A 39.46-g sample of the compound is strongly heated in an atmosphere of hydrogen to remove oxygen as water molecules. At the end, \(31.70 \mathrm{~g}\) of the metal is left over. If \(\mathrm{O}\) has an atomic mass of 16.00 amu, calculate the atomic mass of \(\mathrm{M}\) and identify the element.

Describe the operation of a mass spectrometer.

How many moles of cobalt (Co) atoms are there in \(6.00 \times 10^{9}(6\) billion) Co atoms?

The empirical formula of a compound is \(\mathrm{CH}\). If the molar mass of this compound is about \(78 \mathrm{~g}\), what is its molecular formula?
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