Asked by j
Use the chemical reaction to answer the question.
CaCO3→CO2+CaO
A scientist heats 30 grams of calcium carbonate (CaCO3
) in the chemical reaction shown. What is the total mass of the products?
CaCO3→CO2+CaO
A scientist heats 30 grams of calcium carbonate (CaCO3
) in the chemical reaction shown. What is the total mass of the products?
Answers
Answered by
Eddy
No use one of the answer choices I gave
Answered by
Eddy
Sorry!
CaCO3→CO2+CaO
A scientist heats 30 grams of calcium carbonate (CaCO3
) in the chemical reaction shown. What is the total mass of the products?
(1 point)
Responses
60 grams
60 grams
15 grams
15 grams
10 grams
10 grams
30 grams
CaCO3→CO2+CaO
A scientist heats 30 grams of calcium carbonate (CaCO3
) in the chemical reaction shown. What is the total mass of the products?
(1 point)
Responses
60 grams
60 grams
15 grams
15 grams
10 grams
10 grams
30 grams
Answered by
Eddy
So about 30 grams
Answered by
Dante
Use the chemical reaction to answer the question.
4Fe+3O2→2Fe2O3
What happens to atoms of Fe and O2 during the reaction?
(1 point)
Responses
They are rearranged.
They are rearranged.
They gain mass.
They gain mass.
They maintain their properties.
They maintain their properties.
They are lost.
They are lost.
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4Fe+3O2→2Fe2O3
What happens to atoms of Fe and O2 during the reaction?
(1 point)
Responses
They are rearranged.
They are rearranged.
They gain mass.
They gain mass.
They maintain their properties.
They maintain their properties.
They are lost.
They are lost.
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Answered by
Dante
Which is most likely to occur during a chemical reaction?(1 point)
Responses
Atoms of the original substance are lost.
Atoms of the original substance are lost.
New atoms are created.
New atoms are created.
Mass is conserved.
Mass is conserved.
The original substance maintains its properties.
Responses
Atoms of the original substance are lost.
Atoms of the original substance are lost.
New atoms are created.
New atoms are created.
Mass is conserved.
Mass is conserved.
The original substance maintains its properties.
Answered by
Dante
the reaction is correct?
(1 point)
Responses
Atoms of Na are destroyed during the reaction.
Atoms of Na are destroyed during the reaction.
There are more H atoms after the reaction.
There are more H atoms after the reaction.
Some atoms gain mass after the reaction.
Some atoms gain mass after the reaction.
The atoms of the reactants are regrouped during the reaction
(1 point)
Responses
Atoms of Na are destroyed during the reaction.
Atoms of Na are destroyed during the reaction.
There are more H atoms after the reaction.
There are more H atoms after the reaction.
Some atoms gain mass after the reaction.
Some atoms gain mass after the reaction.
The atoms of the reactants are regrouped during the reaction
Answered by
Dante
Use the chemical reaction to answer the question.
NaHCO3+HC2H3O2→NaC2H3O2+H2O+CO2
A student mixes baking soda (NaHCO3
) and acetic acid (HC2H3O2
) to produce a chemical reaction shown. Which statement about the reaction is correct?
(1 point)
Responses
Atoms of Na are destroyed during the reaction.
Atoms of Na are destroyed during the reaction.
There are more H atoms after the reaction.
There are more H atoms after the reaction.
Some atoms gain mass after the reaction.
Some atoms gain mass after the reaction.
The atoms of the reactants are regrouped during the reaction.
NaHCO3+HC2H3O2→NaC2H3O2+H2O+CO2
A student mixes baking soda (NaHCO3
) and acetic acid (HC2H3O2
) to produce a chemical reaction shown. Which statement about the reaction is correct?
(1 point)
Responses
Atoms of Na are destroyed during the reaction.
Atoms of Na are destroyed during the reaction.
There are more H atoms after the reaction.
There are more H atoms after the reaction.
Some atoms gain mass after the reaction.
Some atoms gain mass after the reaction.
The atoms of the reactants are regrouped during the reaction.
Answered by
Dante
Use the chemical reaction to answer the question.
2H2+O2→2H2O
There are four atoms of hydrogen (H
) before the reaction. How many atoms of hydrogen are present after the reaction?
(1 point)
Responses
4
4
8
8
5
5
2
2H2+O2→2H2O
There are four atoms of hydrogen (H
) before the reaction. How many atoms of hydrogen are present after the reaction?
(1 point)
Responses
4
4
8
8
5
5
2
Answered by
Thea
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