Chemical Reactions

A combustion reaction occurs when a fuel source reacts with oxygen (O₂) to form carbon dioxide (CO₂) and water (H₂O). Combustion reactions are frequently thought of as burning a fuel source. The fuel source is typically made of carbon and hydrogen or carbon, hydrogen, and oxygen. What is the missing equation coefficient that belongs in front of oxygen (O₂) in the combustion reaction for methane, CH₄? CH₄(g) + ___ O₂(g) → CO₂(g) + 2 H₂O(g)

2

In order to balance a reaction, the same number and type of atoms must exist on both sides of an equation. Begin by counting up the number of atoms on the reactant side and confirm that the product side has the same number of atoms. If there is a discrepancy in the number of atoms, change the equation coefficient, or the number in front of the chemical formula, until both sides of the equation have the same number of atoms. What is the coefficient of iron when the following equation is balanced with small, whole-number coefficients? ____ Fe + ____ O₂ → ____ Fe₂O₃

4

A combustion reaction occurs when a fuel source reacts with oxygen (O₂) to form carbon dioxide (CO₂) and water (H₂O). Combustion reactions are frequently thought of as burning a fuel source. The fuel source is typically made of carbon and hydrogen or carbon, hydrogen, and oxygen. What is the missing equation coefficient that belongs in front of oxygen (O₂) in the combustion reaction for glucose, C₆H₁₂O₆? C₆H₁₂O₆(s) + ___ O₂(g) → 6 CO₂(g) + 6 H₂O(g)

6

A chemical reaction occurs when a chemical substance, or the reactants, is converted into a new substance, or the products. There are several types of chemical reactions: combination or synthesis reactions, decomposition reactions, displacement or exchange reactions, and combustion reactions. Which reaction represents a combination reaction?

A + B → AB

A chemical reaction occurs when a chemical substance, or the reactants, is converted into a new substance, or the products. There are several types of chemical reactions: combination or synthesis reactions, decomposition reactions, displacement or exchange reactions, and combustion reactions. Which reaction represents a single displacement reaction?

A + BC → B + AC

A chemical reaction occurs when a chemical substance, or the reactants, is converted into a new substance, or the products. There are several types of chemical reactions: combination or synthesis reactions, decomposition reactions, displacement or exchange reactions, and combustion reactions. Which reaction represents a double displacement reaction?

AB + CD → AD + CB

A chemical reaction occurs when a chemical substance, or the reactants, is converted into a new substance, or the products. There are several types of chemical reactions: combination or synthesis reactions, decomposition reactions, displacement or exchange reactions, and combustion reactions. Which reaction represents a decomposition reaction?

AB → A + B

A chemical reaction occurs when a chemical substance, or the reactants, is converted into a new substance, or the products. Classify the reaction shown below as a combination/synthesis reaction, decomposition reaction, single displacement/single exchange reaction, double displacement/double exchange reaction, or a combustion reaction. 2 H₂O₂(l) → O₂(g) + 2 H₂O(l)

Decomposition reaction

In order to balance a reaction, the same number and type of atoms must exist on both sides of an equation. Begin by counting up the number of atoms on the reactant side and confirm that the product side has the same number of atoms. If there is a discrepancy in the number of atoms, change the equation coefficient, or the number in front of the chemical formula, until both sides of the equation have the same number of atoms. After balancing the reaction, confirm that the total number of atoms is the same on both sides of the equation. In addition, confirm that all of the coefficients are the smallest set of whole numbers. The following boxes contain fluorine atoms (the smaller white circles) as well as nitrogen atoms (the larger blue circles). The initial box contains F₂(g) and N₂(g), while the final box contains NF₃(g). Select the balanced equation that corresponds to the drawings.

N₂(g) + 3 F₂(g) → 2 NF₃(g)

In order to balance a reaction, the same number and type of atoms must exist on both sides of an equation. Begin by counting up the number of atoms on the reactant side and confirm that the product side has the same number of atoms. If there is a discrepancy in the number of atoms, change the equation coefficient, or the number in front of the chemical formula, until both sides of the equation have the same number of atoms. After balancing the reaction, confirm that the total number of atoms is the same on both sides of the equation. In addition, confirm that all of the coefficients are in the smallest set of whole numbers. The following boxes contain hydrogen atoms (the smaller white circles) and oxygen atoms (the larger blue circles). The initial box contains H₂(g) and O₂(g), while the final box contains H₂O(g). Select the balanced equation that corresponds to the drawings.

O₂(g) + 2 H₂(g) → 2 H₂O(g)