QUESTION IMAGE
Question
top 10 chemical reaction in our everyday lives
name scott amesim
directions: read chemical reactions in our everyday lives then answer the following question(s).
- use context clues from the text or a dictionary to define the following terms:
combustion -
rusting -
digestion -
photosynthesis -
ripen -
oxidation - reduction reaction -
cellular respiration -
double displacement reaction -
anaerobic respiration -
exothermic -
- reactants are the materials that start a chemical reaction. when
products are what is made during a chemical reaction. when
a chemical reaction is written out, scientists use an arrow to
represent the reaction happening. everything written before
the arrow is the reactants. everything written after the arrow is the products.
your task is to complete the grid with the reactants and products from every reaction in the text.
green egg
have you ever noticed that hard - boiled eggs sometimes get a greenish - grey
coating on the outside of the yolk? this is due to a reaction between sulfur in
the egg white and iron in the egg yolk. similarly, have you ever noticed that
(scrambled eggs turn greenish in a cast - iron skillet)? this happens but unappetizing
color change is the result of a chemical reaction between iron in the pan and sulfur in
egg white. the reaction between a pan and an egg white is an oxidation - reduction
reaction, which is a reaction in which one of the substances loses an electron (is oxidized)
and the other substance gains that electron (is reduced). this is the equation:
fe₂o₃ + h₂s → feo + s + h₂o
eat and breath to live
all (well, nearly all) living things perform cellular respiration to get energy. energy is required
by every living thing to survive, grow, and reproduce. cellular respiration is a reaction between
oxygen and glucose (food) to form water, carbon dioxide, and chemical energy in the form of
atp (adenosine triphosphate). essentially, cellular respiration breaks down
what you eat (glucose) using what you breathe (oxygen). plants have to make
their own source of glucose through photosynthesis, while animals have to eat
to get glucose. here is the overall equation for cellular respiration:
c₆h₁₂o₆ + o₂ → co₂ + h₂o + energy (36 atp)
volcano
many kids have made a pretend volcano by combining vinegar and baking soda.
the reaction looks like the eruption of a volcano because of the sudden production
of carbon dioxide gas, which quickly forms lots of bubbles. this is a double
displacement reaction. double displacement reactions occur when parts of two
compounds interchange to form two new compounds, basically trading sections
of molecules. here is the baking soda and vinegar reaction:
hc₂h₃o₂ + nahco₃ → nac₂h₃o₂ + h₂o + co₂
no oxygen needed
anaerobic respiration is a set of chemical reactions that allow cells to gain energy
oxygen. muscle cells perform anaerobic respiration whenever you use up a lot of
once, such as during intense or prolonged exercise. anaerobic respiration by
such as yeast and bacteria, called fermentation, produces ethanol,
and other chemicals that go into making cheese, wine, beer, yog
many other common products. the overall chemical equation
anaerobic respiration is:
c₆h₁₂o₆ → c₂h₅oh + co₂ + energy
its getting hot in here
heat packs are used to keep hands warm or to apply to sore muscles. reactions th
mixtures of chemicals that react together to create heat. reactions th
described as exothermic. the main chemicals in hot packs are either
as rock salt to melt ice) and water or magnesium sulfate and water
mgso₄ + h₂o → mg²⁺ + so₄²⁻ + h₂
The problem involves identifying reactants and products for various chemical reactions. Chemical reactions, reactants, and products are core concepts in Chemistry (a subfield of Natural Science). To solve, we analyze each reaction:
- Combustion of Propane: Propane ($\ce{C3H8}$) burns with $\ce{O2}$. Reaction: $\ce{C3H8 + 5O2 -> 3CO2 + 4H2O + energy}$. Reactants: $\ce{C3H8}$, $\ce{O2}$; Products: $\ce{CO2}$, $\ce{H2O}$ (and energy).
- Rusting of Iron: Iron ($\ce{Fe}$) reacts with $\ce{O2}$ and $\ce{H2O}$. Reaction: $\ce{4Fe + 3O2 + 6H2O -> 4Fe(OH)3}$ (rust). Reactants: $\ce{Fe}$, $\ce{O2}$, $\ce{H2O}$; Products: $\ce{Fe(OH)3}$ (rust).
- Ammonia to Urea: $\ce{2NH3 + CO2 -> CO(NH2)2 + H2O}$. Reactants: $\ce{NH3}$, $\ce{CO2}$; Products: $\ce{CO(NH2)2}$, $\ce{H2O}$.
- Photosynthesis: Plants use $\ce{CO2}$, $\ce{H2O}$, and light. Reaction: $\ce{6CO2 + 6H2O ->[light] C6H12O6 + 6O2}$. Reactants: $\ce{CO2}$, $\ce{H2O}$; Products: $\ce{C6H12O6}$, $\ce{O2}$.
- Ethylene and Oxygen: Ethylene ($\ce{C2H4}$) oxidizes: $\ce{C2H4 + 3O2 -> 2CO2 + 2H2O}$. Reactants: $\ce{C2H4}$, $\ce{O2}$; Products: $\ce{CO2}$, $\ce{H2O}$.
- Iron Pan/Egg White Sulfur: From the text: $\ce{FeO3 + H2S -> FeO + S + H2O}$. Reactants: $\ce{FeO3}$, $\ce{H2S}$; Products: $\ce{FeO}$, $\ce{S}$, $\ce{H2O}$.
- Cellular Respiration: $\ce{C6H12O6 + O2 -> CO2 + H2O + energy}$. Reactants: $\ce{C6H12O6}$, $\ce{O2}$; Products: $\ce{CO2}$, $\ce{H2O}$, energy.
- Pretend Volcano: Vinegar ($\ce{HC2H3O2}$) + baking soda ($\ce{NaHCO3}$): $\ce{HC2H3O2 + NaHCO3 -> NaC2H3O2 + H2O + CO2}$. Reactants: $\ce{HC2H3O2}$, $\ce{NaHCO3}$; Products: $\ce{NaC2H3O2}$, $\ce{H2O}$, $\ce{CO2}$.
- Anaerobic Respiration: $\ce{C6H12O6 -> C2H5OH + CO2 + energy}$. Reactants: $\ce{C6H12O6}$; Products: $\ce{C2H5OH}$, $\ce{CO2}$, energy.
- Magnesium Sulfate Hot Pack: $\ce{MgSO4 + H2O -> Mg^{2+} + SO4^{2-} + H2O}$ (dissolution, exothermic). Reactants: $\ce{MgSO4}$, $\ce{H2O}$; Products: $\ce{Mg^{2+}}$, $\ce{SO4^{2-}}$, $\ce{H2O}$ (or hydrated ions).
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| Reaction Name | Reactants | Products |
|---|---|---|
| Rusting of Iron | $\ce{Fe}$, $\ce{O2}$, $\ce{H2O}$ | $\ce{Fe(OH)3}$ (rust) |
| Ammonia to Urea | $\ce{NH3}$, $\ce{CO2}$ | $\ce{CO(NH2)2}$, $\ce{H2O}$ |
| Photosynthesis | $\ce{CO2}$, $\ce{H2O}$ ( + light) | $\ce{C6H12O6}$, $\ce{O2}$ |
| Ethylene and Oxygen | $\ce{C2H4}$, $\ce{O2}$ | $\ce{CO2}$, $\ce{H2O}$ |
| Iron Pan/Egg White Sulfur | $\ce{FeO3}$, $\ce{H2S}$ | $\ce{FeO}$, $\ce{S}$, $\ce{H2O}$ |
| Cellular Respiration | $\ce{C6H12O6}$, $\ce{O2}$ | $\ce{CO2}$, $\ce{H2O}$ ( + energy) |
| Pretend Volcano | $\ce{HC2H3O2}$, $\ce{NaHCO3}$ | $\ce{NaC2H3O2}$, $\ce{H2O}$, $\ce{CO2}$ |
| Anaerobic Respiration | $\ce{C6H12O6}$ | $\ce{C2H5OH}$, $\ce{CO2}$ ( + energy) |
| Magnesium Sulfate Hot Pack | $\ce{MgSO4}$, $\ce{H2O}$ | $\ce{Mg^{2+}}$, $\ce{SO4^{2-}}$, $\ce{H2O}$ |