Which statement correctly describes the classification of chemical reactions into different categories? (1 mark) In a synthesis reaction, two sodium atoms (Na) combine with one molecule of chlorine gas (Cl2) to produce sodium chloride (NaCl). How many molecules of sodium chloride are produced? (1 mark)
When water decomposes, why is twice as much hydrogen as oxygen formed? (1 mark)
Which component is transferred between substances in an oxygen reduction reaction? (1 mark)
During a chemical reaction, substance A transfers electrons to substance B. Which statement is correct? (1 mark) 100%
Not all reactions fit into one category, and some reactions may fit into more than one category.
of them
There are two hydrogen atoms and one oxygen atom in a water molecule.
electrons
Substance B is reduced and acts as an oxidizing agent. Bob you are the worst Which statement correctly describes the classification of chemical reactions into different categories? (1 mark)
I see no statement to choose from
In a synthesis reaction, two sodium atoms (Na) combine with one molecule of chlorine gas (Cl2) to produce sodium chloride (NaCl). How many sodium chloride molecules are produced? (1 mark)
2Na + Cl2 ==> 2NaCl
When water decomposes, why is twice as much hydrogen as oxygen formed? (1 mark)
Because water is H2O; that is, there is twice as much H as O in H2O.
Which component is transferred between substances in an oxygen reduction reaction? (1 mark)
electrons are transferred
During a chemical reaction, substance A transfers electrons to substance B. Which statement is correct? (1 mark)
No statement to choose from