Question

below, fill the name of the type of chemical reaction displayed by the colors: particles combine to make new one synthesis reaction particle breaks apart decomposition reaction particle combinations changed atomos chemical change c. naoh + cacl₂ → d. zn + h₂so₄ →

Explanation:

When particles combine to make a new one, it's a synthesis reaction where two or more substances form a single product. When a particle breaks apart, it's a decomposition reaction where a single - substance breaks into two or more simpler substances. When particle combinations change as shown in the third example, it's a double - displacement reaction (where the positive and negative ions of two ionic compounds exchange places). For the reaction of $NaOH + CaCl_{2}$, it's a double - displacement reaction if a precipitate, gas or water is formed. For $Zn + H_{2}SO_{4}$, it's a single - displacement reaction where zinc replaces hydrogen in sulfuric acid.

Answer:

• For "Particles combine to make new one": Synthesis reaction
• For "Particle breaks apart": Decomposition reaction
• For "Particle combinations changed": Double - displacement reaction
• For $NaOH + CaCl_{2}$: Double - displacement reaction (if a reaction occurs forming a precipitate, gas or water)
• For $Zn + H_{2}SO_{4}$: Single - displacement reaction