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What happens during a chemical reaction?
What happens during a chemical reaction?
- Formation of identical substances
- Formation of substances with random properties
- Breaking of chemical bonds between the atoms or groups of atoms of reacting substances and rearrangement of atoms making new bonds to form new substances (correct)
- No change in the arrangement of atoms
What is a chemical reaction?
What is a chemical reaction?
- A change in matter without any transformation
- A physical change in matter involving transformation into substances with similar properties
- Any chemical change in matter involving transformation into substances with distinct properties (correct)
- A change in matter involving only physical properties
What is a chemical bond?
What is a chemical bond?
- The force of repulsion between atoms in a molecule
- The force of attraction that holds the atoms of a molecule together, in a compound (correct)
- The force that prevents any chemical reaction from occurring
- The force that causes atoms to separate from each other
What is the primary result of a chemical reaction?
What is the primary result of a chemical reaction?
What do chemical reactions involve?
What do chemical reactions involve?
Flashcards
Chemical Bond
Chemical Bond
The force that holds atoms together in a molecule or compound.
Chemical Reaction
Chemical Reaction
A process where atoms break apart, rearrange, and form new substances with different properties.
Primary Result of a Chemical Reaction
Primary Result of a Chemical Reaction
The creation of entirely new substances with distinct properties.
What happens during a chemical reaction?
What happens during a chemical reaction?
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What do chemical reactions involve?
What do chemical reactions involve?
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Study Notes
Chemical Reactions
- A chemical reaction is a process in which one or more substances (reactants) are converted into new substances (products) with different properties.
- During a chemical reaction, chemical bonds are broken and formed, resulting in a change in the chemical composition of the reactants.
Chemical Bonds
- A chemical bond is a force that holds atoms together in a molecule, formed when two or more atoms share or exchange electrons.
Primary Result of a Chemical Reaction
- The primary result of a chemical reaction is the formation of new substances with different properties, which can have different textures, colors, or odors.
Involvement in Chemical Reactions
- Chemical reactions involve the breaking and forming of chemical bonds, resulting in a change in the chemical composition of the reactants, often accompanied by a release or absorption of energy.
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Get free PDF download of Selina Solutions for ICSE Class 8 Chemistry Chapter 6 - Chemical Reactions. These expert-provided solutions help students excel in their studies and ace their examinations.
