Stoichiometry Basics Quiz

False (B)

Mass is neither created nor destroyed in a chemical reaction.

<p>44.0</p> Signup and view all the answers

<p>CO = 28.0 g/mol O2 = 32.0 g/mol CO2 = 44.0 g/mol</p> Signup and view all the answers

<p>Bridge Method (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Divide twice</p> Signup and view all the answers

<p>starting</p> Signup and view all the answers

<p>Little Bridge = Used for moles, liters, or particles Big Bridge = Used for grams Bridge Method = A shortcut for solving proportions Stoichiometry = Study of the relationships between amounts of substances</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>6 liters</p> Signup and view all the answers

<p>products</p> Signup and view all the answers

<p>3 moles of O2 = 6 moles of CO 4 moles of CO = 2 moles of O2 12 L of CO2 = 6 L of O2</p> Signup and view all the answers

<p>Divide by the first factor (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>64</p> Signup and view all the answers

<p>molecules</p> Signup and view all the answers

<p>Big Bridge method = Used for grams Little Bridge method = Used for molecules, liters, or moles</p> Signup and view all the answers

<p>2CO + O2 → 2CO2 (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Division</p> Signup and view all the answers

<p>15</p> Signup and view all the answers

<p>CO = Carbon monoxide O2 = Oxygen CO2 = Carbon dioxide</p> Signup and view all the answers

<p>105 grams (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Grams</p> Signup and view all the answers

The branch of chemistry that studies the quantitative relationships between reactants and products in chemical reactions.

Numbers placed in front of chemical formulas in a balanced chemical equation. They represent the relative number of moles of each substance involved in the reaction.

Coefficients in a balanced equation determine the relative number of moles, volumes of gases (at the same temperature and pressure), and particles (molecules or atoms) of each substance involved in a reaction.

The total mass of reactants in a closed system must equal the total mass of products.

Using proportions to solve stoichiometry problems.

A method used to solve stoichiometry problems involving moles, liters, or particles. It involves dividing and then multiplying by the appropriate coefficients and molar mass.

A method used to solve stoichiometry problems involving grams. It involves dividing twice, multiplying twice, and using the appropriate coefficients and molar masses.

A proportion is a mathematical statement that two ratios are equal. In stoichiometry, proportions are used to relate the amounts of reactants and products in a chemical reaction.

The amount of a substance that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon-12.

A chemical equation that shows the relative amounts of reactants and products involved in a chemical reaction. The coefficients in a balanced chemical equation represent the stoichiometric ratios of the substances.

A tool for solving stoichiometry problems involving gases, where volumes are measured at the same temperature and pressure. It's based on the idea that equal volumes of gases contain the same number of molecules.

This bridge uses a combination of coefficients, molar masses, and given masses to relate the amounts of different substances in a chemical reaction.

A way to represent the ratio of moles of reactants and products that participate in a chemical reaction. Coefficients in balanced chemical equations are crucial for stoichiometry calculations.

A method used in chemistry to determine the amount of product formed in a reaction based on the amount of reactant used.

The Big Bridge Method involves dividing twice, multiplying by a conversion factor (usually 1), and then multiplying by the desired amount.

The Big Bridge Method is generally used when dealing with calculations involving grams of substances in chemical reactions. It helps to convert grams to moles and then to the desired quantity of the substance.

The relative number of moles of each substance involved in a reaction. Represented by the coefficients in front of each chemical formula in a balanced chemical equation.

A chemical equation is balanced when the number of atoms of each element on both sides of the equation is equal. This ensures that the Law of Conservation of Mass is obeyed.

The total mass of the reactants in a closed system must equal the total mass of the products.

Stoichiometry is the branch of chemistry that studies the quantitative relationships between reactants and products in chemical reactions. It deals with calculating the amounts of substances involved in chemical reactions, using balanced equations.

Stoichiometry problems involve using balanced chemical equations and mole relationships to calculate the amount of reactants or products in a reaction.

The sequence of calculations in the Big Bridge Method doesn't matter, as long as the division steps are done before any multiplication.

The result of the Big Bridge method plus the result of another related calculation, using different factors, should equal the given number.

The Big Bridge method is a tool for solving stoichiometry problems that involve grams. It's like a step-by-step bridge for navigating the relationships between reactants and products.