Question

2 what is an effect of a chemical reaction? choose three.
alteration of chemical bonds
formation of a new substance with different properties
change in chemical properties
creation of atoms
destruction of atoms

Explanation:

1. Alteration of chemical bonds: In a chemical reaction, reactant molecules break existing bonds and form new ones to create products, so this is an effect.
2. Formation of a new substance with different properties: Chemical reactions produce new substances (products) that have distinct physical and chemical properties from the reactants.
3. Change in chemical properties: Since new substances are formed, their chemical properties (like reactivity, flammability, etc.) differ from the original reactants.
4. Creation of atoms: Atoms are neither created nor destroyed in a chemical reaction (conservation of mass), so this is incorrect.
5. Destruction of atoms: Atoms are conserved in chemical reactions, so they are not destroyed.

Answer:

• Alteration of chemical bonds
• Formation of a new substance with different properties
• Change in chemical properties