Respuesta :
Answer:
1. Which statement correctly describes the classification of chemical reactions into different categories?
-Not all reactions fit into a category, and some reactions can fit into more than one category.
2. In a synthesis reaction, two atoms of sodium (Na) combine with one molecule of chlorine gas (Cl2) to produce sodium chloride (NaCl). How many molecules of sodium chloride are produced?
-Two
3. In the decomposition of water, why is twice as much hydrogen as oxygen formed?
- There are two atoms of hydrogen and one atom of oxygen in a water molecule.
4. Which component is transferred between substances in an oxygen-reduction reaction?
-Electrons
5. In a chemical reaction, substance A transfers electrons to substance B. Which statement is correct?
-Substance B is reduced and acts as the oxidizing agent.
Hope that helps!!
Substance B is reduced and acts as the oxidizing agent.
REDOX REACTION:
- A redox reaction is also called an oxidation-reduction reaction because it involves the transfer and receipt of electrons by compounds or molecules.
- Oxidation-reduction reaction happens when the oxidation number of the ions involved in the reaction changes.
- The substance that transfers or loses electrons in a redox reaction is called the REDUCING AGENT while the substance that gains or accepts electrons is called OXIDIZING AGENT.
- The reducing agent becomes oxidized because it loses electrons while the oxidizing agent becomes reduced because it gains electrons.
- Therefore, if substance A transfers electrons to substance B, the correct statement is that "Substance B is reduced and acts as the oxidizing agent".
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