choices provided. Mark your choice on your TypOrade your ZipGrade scannron will be graded. 1. Which type of reaction is the following: 1.i+Cl_(2)arrow A. Decomposition B. Synthesis C. Single Replacement D. Combustion 2. Which type of reaction is the following: KNO_(3)+Caarrow A . Synthesis B. Combustion C. Single Replacement D. Double Replacement 3. Which type of reaction involves two compounds reacting and switching places to form two new compounds? A. Single Replacement B. Synthesis C. Decomposition D. Double Replacement Vhich type of reaction involves a hydrocarbon reacting with elemental oxygen to form ide and water? A.Single Replacement B. Combustion C. Synthesis D. Decomposition

1. The reaction $1.i+Cl_{2}\rightarrow $ is a single replacement reaction. In this reaction, iodine (I) reacts with chlorine (Cl2) to form iodine chloride (ICl). This is a single replacement reaction because one element (I) is replaced by another element (Cl) in a compound.<br /><br />2. The reaction $KNO_{3}+Ca\rightarrow $ is a single replacement reaction. In this reaction, potassium nitrate (KNO3) reacts with calcium (Ca) to form calcium nitrate (Ca(NO3)2) and potassium (K). This is a single replacement reaction because one element (Ca) is replaced by another element (K) in a compound.<br /><br />3. A double replacement reaction involves two compounds reacting and switching places to form two new compounds. In this type of reaction, the cations and anions of the two reactants switch places to form two new compounds. For example, in the reaction $AB+CD\rightarrow AD+CB$, A and C are cations, and B and D are anions. After the reaction, A and D form a new compound, and C and B form another new compound.<br /><br />4. A combustion reaction involves a hydrocarbon reacting with elemental oxygen to form carbon dioxide and water. In this type of reaction, a hydrocarbon (a compound containing only carbon and hydrogen) reacts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). For example, in the reaction $CH_{4}+2O_{2}\rightarrow CO_{2}+2H_{2}O$, methane (CH4) reacts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O).