Matter Interactions Unit Test
11 of 1311 of 13 Items
Question
Use the unbalanced chemical equation to answer the question.
2NaHCO3 → Na2CO3 + CO2
Which of the following can be added to the products to balance the equation?
(1 point)
Responses
H2O
5 answers
No, H2O cannot be added to balance the equation because it is not part of the equation and would not react with any of the substances in the equation.
Matter Interactions Unit Test
11 of 1311 of 13 Items
Question
Use the unbalanced chemical equation to answer the question.
2NaHCO3 → Na2CO3 + CO2
Which of the following can be added to the products to balance the equation?
(1 point)
Responses
H2O
H 2 O
O2
O 2
H2
H 2
CH2OH
CH 2 OH
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11 of 1311 of 13 Items
Question
Use the unbalanced chemical equation to answer the question.
2NaHCO3 → Na2CO3 + CO2
Which of the following can be added to the products to balance the equation?
(1 point)
Responses
H2O
H 2 O
O2
O 2
H2
H 2
CH2OH
CH 2 OH
Skip to navigation
H2O can be added to the products to balance the equation.
The image is a model of sulfuric acid that has a chemical formula of H2SO4. In 1-2 sentences, explain why creating models, like the one shown in the image above, is important in understanding substances.
(2 points)
(2 points)
Creating models is important in understanding substances because they provide a visual representation that helps us visualize the structure, composition, and arrangement of atoms in the substance, making it easier to comprehend its properties and behavior.
1 answer