A double replacement chemical equation is shown. __MnO2 + __HCl → __MnCl2 + __H2O + __Cl2 What values should be inserted into the blanks as coefficients to ensure the preservation of the law of conservation of matter? (1 point) Responses 1,4,1,2,1 1,4,1,2,1 2,3,1,2,1 2,3,1,2,1 2,4,2,4,1 2,4,2,4,1 1,2,1,2,1
5 answers
To ensure the preservation of the law of conservation of matter, the coefficients should be inserted into the blanks as follows: 2, 4, 2, 4, 1.
among the following equations, which one is in a balanced state?(1 point)
Responses
C3H8 + 5 O2 → 3 CO2 + 4 H2O
C 3 H 8 + 5 O 2 → 3 CO 2 + 4 H 2 O
2 C3H8 + 4 O2 → 2 CO2 + 4 H2O
2 C 3 H 8 + 4 O 2 → 2 CO 2 + 4 H 2 O
C3H8 + 11 O2 → 3 CO2 + 8 H2O
C 3 H 8 + 11 O 2 → 3 CO 2 + 8 H 2 O
C3H8 + 3 O2 → CO2 + H2O
C 3 H 8 + 3 O 2 → CO 2 + H 2 O
Responses
C3H8 + 5 O2 → 3 CO2 + 4 H2O
C 3 H 8 + 5 O 2 → 3 CO 2 + 4 H 2 O
2 C3H8 + 4 O2 → 2 CO2 + 4 H2O
2 C 3 H 8 + 4 O 2 → 2 CO 2 + 4 H 2 O
C3H8 + 11 O2 → 3 CO2 + 8 H2O
C 3 H 8 + 11 O 2 → 3 CO 2 + 8 H 2 O
C3H8 + 3 O2 → CO2 + H2O
C 3 H 8 + 3 O 2 → CO 2 + H 2 O
The balanced equation among the given options is: 2 C3H8 + 4 O2 → 2 CO2 + 4 H2O.
The chemical equation provided signifies a nuclear reaction.
What is the most accurate description for this particular type of reaction?
(1 point)
Responses
Fusion is indicated as the reaction involves the creation of heavier nuclei.
Fusion is indicated as the reaction involves the creation of heavier nuclei.
Fusion is indicated as the reaction led to the creation of lighter nuclei.
Fusion is indicated as the reaction led to the creation of lighter nuclei.
Fission is indicated since the reaction resulted in the formation of heavier nuclei.
Fission is indicated since the reaction resulted in the formation of heavier nuclei.
Fission is suggested as the reaction resulted in the formation of lighter nuclei.
What is the most accurate description for this particular type of reaction?
(1 point)
Responses
Fusion is indicated as the reaction involves the creation of heavier nuclei.
Fusion is indicated as the reaction involves the creation of heavier nuclei.
Fusion is indicated as the reaction led to the creation of lighter nuclei.
Fusion is indicated as the reaction led to the creation of lighter nuclei.
Fission is indicated since the reaction resulted in the formation of heavier nuclei.
Fission is indicated since the reaction resulted in the formation of heavier nuclei.
Fission is suggested as the reaction resulted in the formation of lighter nuclei.
The most accurate description for a nuclear reaction that involves the creation of heavier nuclei is Fusion is indicated as the reaction involves the creation of heavier nuclei.