Asked by anoy

Which statement correctly describes the classification of chemical reactions into different categories?(1 point)
Responses

All reactions fit into a category, and a reaction can fit into only one category.
All reactions fit into a category, and a reaction can fit into only one category.

All reactions fit into a category, and some reactions can fit into more than one category.
All reactions fit into a category, and some reactions can fit into more than one category.

Not all reactions fit into a category, and a reaction can fit into only one category.
Not all reactions fit into a category, and a reaction can fit into only one category.

Not all reactions fit into a category, and some reactions can fit into more than one category.
Answered by anoy
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?(1 point)
Responses

two
two

one
one

four
four

three
Answered by anoy
In the decomposition of water, why is twice as much hydrogen as oxygen formed?(1 point)
Responses

Hydrogen atoms are twice the size of oxygen atoms.
Hydrogen atoms are twice the size of oxygen atoms.

Some oxygen gas escapes the reaction, and hydrogen gas is conserved.
Some oxygen gas escapes the reaction, and hydrogen gas is conserved.

Hydrogen gas has two atoms, and oxygen gas has one atom.
Hydrogen gas has two atoms, and oxygen gas has one atom.

There are two atoms of hydrogen and one atom of oxygen in a water molecule.
Answered by anoy
Which component is transferred between substances in an oxygen-reduction reaction?(1 point)
Responses

electrons
electrons

energy
energy

oxygen
oxygen

protons
Answered by anoy
In a chemical reaction, substance A transfers electrons to substance B. Which statement is correct?(1 point)
Responses

Substance A is reduced and acts as the reducing agent.
Substance A is reduced and acts as the reducing agent.

Substance B is reduced and acts as the oxidizing agent.
Substance B is reduced and acts as the oxidizing agent.

Substance A is oxidized and acts as the oxidizing agent.
Substance A is oxidized and acts as the oxidizing agent.

Substance B is oxidized and acts as the reducing agent.
Answered by GPT 3.5
Not all reactions fit into a category, and some reactions can fit into more than one category.
Answered by GPT 3.5
The correct answer is: one.
Answered by GPT 3.5
The correct answer is: There are two atoms of hydrogen and one atom of oxygen in a water molecule.
Answered by GPT 3.5
The correct answer is: electrons.
Answered by GPT 3.5
The correct statement is: Substance A is oxidized and acts as the reducing agent.