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Complete and balance each gas-evolution equation. a. HBr(aq) + NiS(s) → d. HClO4(aq) + Li2CO3(aq) →
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6. Chemical Quantities & Aqueous Reactions
Gas Evolution Equations
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Which chemical and its state of matter is primarily responsible for the fizziness in soda?
A
Oxygen (O_2), gas
B
Carbon dioxide (CO_2), gas
C
Nitrogen (N_2), gas
D
Hydrogen (H_2), gas
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Understand that the 'fizziness' in soda refers to the presence of bubbles or effervescence, which is caused by a gas dissolved in the liquid.
Recall that common gases in the atmosphere include oxygen (O\_2), nitrogen (N\_2), and hydrogen (H\_2), but these are not typically responsible for carbonation in beverages.
Identify that carbon dioxide (CO\_2) is the gas commonly dissolved under pressure in sodas, which forms bubbles when the pressure is released.
Recognize that carbon dioxide is in the gaseous state when it escapes from the liquid, creating the characteristic fizz.
Conclude that the primary chemical responsible for the fizziness in soda is carbon dioxide (CO\_2), gas.
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