How long does it take for aluminum cans to decompose.
Answers
Aluminum cans take around 200-500 years to decompose, depending on whether they are recycled or not. Here are some details regarding how long it takes for aluminum cans to decompose
Aluminum cans are manufactured from bauxite ore, which is a non-renewable source. Recycling aluminum cans, on the other hand, may aid in the preservation of this natural resource. Furthermore, the recycling of aluminum cans has a number of other environmental advantages.
The aluminum recycling process saves 95 percent of the energy required to produce aluminum from raw bauxite ore, which is a significant amount of energy. Furthermore, recycling one aluminum can saves enough energy to power a television for three hours, according to research. Another benefit of recycling aluminum cans is that it lowers greenhouse gas emissions.Aluminum cans take a long time to decompose. If you put them in the recycling bin, the aluminum can be recycled and reused. If they end up in a landfill, they can take up to 200 to 500 years to decompose.
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Related Questions
What must be true of a system where reactants are more abundant at equilibrium?
Keq>1, ΔG∘<0
Keq<1, ΔG∘>0
Keq=1, ΔG∘=0
depends on the temperature
Answers
The correct answer is:
Keq<1, ΔG∘>0
When a system is at equilibrium, the forward and reverse reactions occur at equal rates. At this point, the concentrations of the reactants and products do not change over time. The equilibrium constant (Keq) is a measure of the relative concentrations of the reactants and products at equilibrium.
If the reactants are more abundant at equilibrium, it means that the equilibrium lies towards the side of the reactants. This suggests that the value of Keq is less than 1, since the ratio of products to reactants is low. Additionally, a positive ΔG∘ (standard free energy change) indicates that the reaction is not spontaneous in the forward direction, meaning that energy must be added to the system to proceed in that direction.
Therefore, the correct statement is: Keq<1, ΔG∘>0.
It's important to note that this answer assumes standard conditions (25°C, 1 atm pressure, and 1 M concentration). At different temperatures and concentrations, the values of Keq and ΔG∘ may change.
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What force(s)
might cause a car
to slow down?
Friction
Applying the brakes
Wind
All of the above
Answers
what is the form of energy contained in a dam called? group of answer choices nuclear chemical kinetic potential
Answers
Potential Energy is the form of energy contained in dam.
Total energy:
The total energy of each considered object is the sum of its potential energy (P.E) and kinetic energy (K.E) and is constant throughout motion. For example, at finite height, a ball has maximum potential energy and zero kinetic energy, and when released, K.E increases and becomes maximum at ground level, and P.E decreases to zero at ground level. , so the total energy increases. There is movement of the ball in the same way everywhere. The energy that an object has due to its motion is called kinetic energy, and the energy that an object has due to its position and shape is called potential energy.
Here the water dammed by the dam has a certain potential height. This means that water has latent energy because it is located far from the bottom. Therefore, water dammed up by a dam has potential energy.
Potential Energy:
In physics, potential energy is the energy possessed by an object due to its position relative to other objects, its own tension, electrical charge, or other factors. Common types of potential energy are the gravitational potential energy of a body, the elastic potential energy of an extended spring, and the electrical potential energy of an electric charge in an electric field. The unit of energy in the International System of Units (SI) is the joule, and the symbol is J.
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Observe the statements. I. Phenolphthalein is a colourless solution II. Phenolphthalein turns pink in basic solution III. Phenolphthalein turns red in acidic solution IV. Phenolphthalein remains colourless in acidic solution Choose the correct option a.I &II are correct b.I & III are correct c.I ,II & IV are correct d.All the statements are correct
Answers
Answer:
c.I ,II & IV are correct
Explanation:
Phenolphthalein is an indicator. An indicator is an organic dye whose solution changes colour as the concentration of hydrogen ions in solution changes.
Hence a typical indicator exhibits different colours at different pH ranges. The colour of an indicator in an acid, a base and at end point always differs.
Phenolphthalein is a colourless solution which has a pink colour in an alkaline medium and colourless in an acidic medium.
1+1 = ?
plz say plzplapL
Answers
Sabrina places a hot pot with a temperature of 72 °C on top of a cool table at 28 °C. After 45 minutes, the pot and the table are the same temperature. Which of the following best describes what occurred?
Answers
Answer:
Heat is transferred from the hotter pot to the less hot one
Explanation:
When happened within the time period is that both substances reached thermal equilibrium.
This was made possible as heat passed from the hotter pot to the less one.
Heat is conducted from a body at high temperature to one at low temperature This way , the thermal gradient continues to change in order to attain equilibrium. When equilibrium is attained, no more thermal conduction occurs.Answer:
D
Explanation: maybe it is d
Hi can someone help me with this ill give brainliest asap
Answers
Balanced equation :
C₂H₆+7O₂⇒4CO₂+6H₂O
Further explanationConservation of mass :
In a closed / isolated system, the total mass of the substance before the reaction will be equal to the total mass of the reaction product.
Conservation of mass applies to a closed system, where the masses before and after the reaction are the same
This is the basis of reference, that the total atoms in the reactants will be equal to the total atoms in the product
The elements in the reaction will also be found in the product, but in the form of other compounds
Reaction
\(\tt C_2H_6+O_2\rightarrow CO_2+H_2O\)
Let's look at the number of atoms in the reactants and products
C,left=2, right=1
H,left=6, right 2
O,left=2, right 3
So the equation not balanced
To balance, we can use the formula for burning alkanes or by using mathematical equations
1. Formula(in this case the hydrocarbon is ethane,n=2)
\(\large {\boxed {\bold {C_nH _ (_2_n _ + _ 2_) + \dfrac {3n + 1} {2} O_2 \rightarrow nCO_2 + (n + 1) H_2O}}}\)
2. Mathematical equations
give equation
C₂H₆+aO₂⇒bCO₂+cH₂O
C,left=2, right=b⇒b=2
H,left=6,right=2c⇒2c=6⇒c=3
O,left=2a,right=2b+c⇒2a=2b+c⇒2a=2.2+3⇒2a=7⇒a=7/2
C₂H₆+7/2O₂⇒2CO₂+3H₂O x 2
C₂H₆+7O₂⇒4CO₂+6H₂O
6. Although Inigo and the masked man are rivals, they actually have a lot
in common.
Give three examples from the swordfighting scene that show their
similarities.
Answers
The three (3) examples from the sword fighting scene that showed Inigo and the masked man's similarities are:
They can fight with both hands.They are both professional swordsmen. Inigo and the masked man discussed about their life.Who is Inigo?Inigo Montoya was one of the fictional character in the novel titled "The Princess Bride" and written by William Goldman's in 1973. Inigo hails from the village called Arabella and he was raised by his father Domingo Montoya, who was a master craftsman that makes sword.
In The Princess Bride, Inigo had a swordfight with a man in black (masked man) and they have the following things in common:
They can fight with both hands.They are both professional swordsmen. Inigo and the masked man spoke about their personal life.Read more on Inigo here: https://brainly.com/question/1130107
Calculate the atomic mass of the following elements from
the percentage of their isotopes.
78.99% of 24 Mg, 10.00% of 25 Mg, 11.01% of 26 Mg
Answers
Answer: 24.32 AMU
Explanation:
See attachment.
2+2+2 plssssssssssssssssssssssssss
Answers
Answer:
6
Explanation:
2+2+2=6 :)
Answer:
6
Explanation:
vvvffhjh DC hcf vhcnbfhbc
To prevent a piece of iron from rusting, which one of the following metals will provide the best coating?
Answers
The best metal to use for coating iron to prevent it from rusting is zinc. It also forms a protective oxide layer on its surface, which provides an additional barrier against rusting.
Zinc is a very reactive metal and can form an oxide layer on the surface of iron when exposed to the air, which acts as a barrier that prevents oxygen and moisture from reaching the iron and causing corrosion. This oxide layer is very thin and very hard, making it an excellent protective coating. Zinc is also relatively inexpensive compared to other metals, making it an attractive choice for protecting iron from rusting. Zinc has a higher electronegativity than iron, which means that it will be more likely to attract oxygen and water molecules away from the iron surface, thus preventing corrosion.
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which law of motion does the diagram depict
Answers
Wwrite the equation for the dissociation of strontium sulfate in water.
Answers
The dissociation of strontium sulfate (SrSO₄) in water can be represented by the following equation: SrSO₄ (s) ⇌ Sr²⁺ (aq) + SO₄²⁻ (aq)
In this equation, the solid strontium sulfate (SrSO₄) dissociates into its respective ions: the strontium cation (Sr²⁺) and the sulfate anion (SO₄²⁻). When the compound is placed in water, it dissociates into its ions, which are now in the aqueous phase, represented by the (aq) notation. The double arrow (⇌) indicates that the dissociation is a reversible process, meaning that the ions can recombine to form the original compound.
The extent of dissociation depends on the solubility of strontium sulfate in water, which is relatively low. This means that only a small amount of SrSO₄ will dissolve in water, while the majority of it remains undissolved as a solid. The solubility product constant (Ksp) can be used to quantify the solubility of sparingly soluble salts like SrSO₄. It is defined as the product of the equilibrium concentrations of the constituent ions raised to the power of their stoichiometric coefficients. For SrSO₄, the Ksp expression can be written as:
Ksp = [Sr²⁺] [SO₄²⁻]
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The identity of an element is determined by
A. the number of neutrons
B. the weight of the nucleus
C. the number of protons
D. the number of electrons
The answer is Number of Protons !
Answers
Answer: D. the number of protons
Explanation: The number of protons shows you what the Atomic number of an element is on the Periodic table of elements.
The identity of an element is primarily determined by the number of protons it possesses. The Option C.
What determines the identity of an element?Each element on the periodic table has a unique number of protons in its nucleus which is referred to as its atomic number. This fundamental property of an element distinguishes it from other elements and determines its place on the periodic table.
While number of neutrons and electrons can vary within an element, it is the number of protons that defines its identity. Thus, the correct answer is C: the number of protons.
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During a lab, a tablet i dropped into a bag and liquid i added. The ma of the tablet wa 20 g, the ma of the bag wa 50 g, the ma of the liquid wa 90 g. When the tablet hit the water, a chemical reaction took place and the bag filled with ga. If the ma of the liquid remained at 90 g, how much ga wa produced?
Answers
Response: 25 g. According to the law of conservation of mass, mass is maintained throughout a chemical process.
What instances from chemistry?The elements, including such zinc, helium, or oxygen, as well as compounds comprised of components like water, carbon dioxide, or salt, as well as more complicated materials, such as your computer, the air you breathe, rainfall, a chicken, a car, etc., are examples of chemicals.
Why do chemicals form?Chemical processes occur when atoms form or break chemical bonds. The molecules that start a chemical reaction are known as reactants, and the molecules that are produced as the result of the process are known as products.
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What is the boiling point in °C) of a 0.527 m
aqueous solution of LiBr?
Enter your rounded answer with
3 decimal places.
Answers
100.54 °C
Explanation:
Supposing complete ionization:
LiBr → Li{+} + Br{-] [two ions]
• (0.527 m LiBr) x (2 mol ions / 1 mol LiBr) = 1.054 m ions
• (0.512 °C/m) x (1.054 m) = 0.540 °C change
• 100.00°C + 0.540 °C = 100.54 °C
To solve this we must know the concept behind the phenomenon of elevation in boiling point when a non volatile solute is added to any solvent. Therefore, boiling point in °C of a 0.527 m aqueous solution of LiBr is 100.54 °C.
What is elevation in boiling point ?Whenever a non volatile solute is added to a solvent then the boiling point of solvent increases.
Mathematically,
ΔT= Kb× molality
The complete balanced equation can be written as
LiBr → Li⁺ + Br⁻ [two ions]
substituting all the given values in the above mathematical expression, we get
(0.527 m LiBr) x (2 mol ions / 1 mol LiBr) = 1.054 m ions
(0.512 °C/m) x (1.054 m) = 0.540 °C change
100.00°C + 0.540 °C = 100.54 °C
Therefore, boiling point in °C of a 0.527 m aqueous solution of LiBr is 100.54 °C.
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60.0 mL of 0.322 M potassium iodide are combined with 20.0 mL of 0.520 M lead (ll) nitrate. How many grams of lead (ll) iodide will precipitate? (you must write your own equation)
Answers
60.0 mL of 0.322 M potassium iodide are combined with 20.0 mL of 0.520 M lead (ll) nitrate. 4.453 g is the mass of lead (ll) iodide will precipitate.
A body's mass is an inherent quality. Prior to the discoveries of the atom as well as particle physics, it was widely considered to be tied to the amount of material in a physical body. It was discovered that, despite having the same quantity of matter in theory, different atoms and elementary particles have varied masses.
There are various conceptions of mass in contemporary physics that are theoretically different but physically equivalent. As a measure of a body's inertia, or the resistance to velocity whenever a combined force is applied, mass can be conceptualised empirically.
2KI + Pb(NO₃)₂ → 2KNO₃ + PbI₂(s)
Moles of KI = 0.322 M × 0.060 L
= 0.01932 moles
Moles of KNO₃= 0.530 M × 0.020 L
= 0.0106 M
0.01932 moles of KI will require 0.00966 moles of Pb(NO₃)₂
KI = limiting reagent
Moles of PbI₂ = 0.01932 moles ÷ 2
= 0.00966 mole
Mass of PbI₂ = 0.00966 moles × 461.01 g/mol
= 4.453 g
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select all of the mineral properties that depend on the interaction of light with the sample. a. fracture b. hardness c. luster d. streak e. color f. specific gravity g. reaction to hcl h. cleavage
Answers
The mineral properties that depend on the interaction of light with the sample are luster, color, streak, and cleavage.
Luster is the way in which light reflects off a mineral's surface. Color is the appearance of a mineral due to the absorption and reflection of light. Streak is the color of the powdered mineral, which is obtained by rubbing it on a piece of unglazed porcelain. Cleavage is the way in which a mineral breaks along flat surfaces due to its internal structure.
Fracture, hardness, specific gravity, and reaction to HCl do not depend on the interaction of light with the sample. Fracture refers to the way in which a mineral breaks along irregular surfaces. Hardness is a measure of a mineral's resistance to scratching. Specific gravity is the ratio of a mineral's weight to the weight of an equal volume of water. Reaction to HCl is a test to determine if a mineral contains calcium carbonate.
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what did you observe while benzoic acid-salt mixture is melting?
Answers
what did you observe while benzoic acid is melting?
I observed while benzoic acid is melting it bubbling
What is the molecular shape of N2?
Answers
The molecular shape of N2 is linear. In a linear molecule, all of the atoms are in a straight line and the bond angles between them are 180°.
This is due to the fact that nitrogen has a valence shell electron configuration of 2s2 2p3. This means that there are two bonding orbitals and three lone pairs of electrons. The two bonding orbitals are arranged in an linear geometry, forming two bonds between the two nitrogen atoms. The three lone pairs of electrons occupy the three remaining orbitals, which point away from the two atoms, forming a linear molecule. The bond angle between the two nitrogen atoms is 180°.
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Using the picture of the closed system provided, what is the mass of the system before mixing?
A. it must be more than 300.23 grams
B. it must be 300.23 grams
C. there is no way to tell
D. it must be less than 300.23 grams
Answers
Answer: the answer is D
Explanation:it must be less than 300.23 grams because in the second picture it shows more water in side and the first one has less
Answer:
It must be equal to 300.23g
Explanation:
According to law of conservation of masses
Mass is neither created nor destroyed in a chemical reaction.If mass of products is 300.23g then mass of reactants must be 300.23g
Help me please guys :)
Answers
Explanation:
1. Methane
2. Diamond
3. not sure : )
The bonding of metals and _______________ does not involve the ____________________ of electrons.
a
nonmetals, sharing
b
metalloids, transfer
c
nonmetals, transfer
Answers
The bonding of metals and non metals does not involve the sharing of electrons. The correct option is option A. There are two types of bonding, covalent bonding and ionic bonding.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
There are two types compound one is covalent compound and other is ionic compound. Covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron.
The bonding of metals and non metals does not involve the sharing of electrons. when metal and non metals combine then there is transfer of electrons from metals to non metals.
Therefore, the bonding of metals and non metals does not involve the sharing of electrons. The correct option is option A.
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i will do anything just pls answer this like anythting
Answers
Answer:
second
Explanation:
will % recovery be impacted if you do not wait for the recovered crystals to dry before weighing them? what about the melting point? explain your reasoning clearly.
Answers
Yes, the % recovery will be impacted if you do not wait for the recovered crystals to dry before weighing them. The melting point, however, will not be affected.
When determining the % recovery of a substance, it is important to accurately measure the mass of the recovered product. If the crystals are not allowed to dry completely before weighing, they may still contain traces of moisture, which can add to their mass and lead to an overestimation of the recovery percentage.
Moisture can be absorbed from the surrounding environment, especially if the crystals are hygroscopic (have a tendency to attract and retain moisture).
To obtain an accurate % recovery, it is crucial to ensure that the crystals are completely dry before weighing them. This can be achieved by allowing them to air dry or using techniques such as vacuum drying or desiccation with drying agents.
On the other hand, the melting point of a substance is determined by the temperature at which it changes from a solid to a liquid state. The presence of moisture within the crystals, if not fully dried, may affect the melting point determination due to the vaporization of water at lower temperatures. However, once the crystals are completely dry, their melting point should remain unaffected.
In summary, while the % recovery can be impacted by not waiting for the crystals to dry before weighing, the melting point is not affected as long as the crystals are fully dry during the measurement.
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If a bag of chips cost $4.50 and contains 6 servings, how much are you paying per serving?
Answers
Answer:
.75
Explanation:
Answer:
0.75 cents
Explanation:
B. Determination of the composition of a mixture of sodium phosphate and sodium chloride Mass of mixture: _2.35519___
Balanced chemical equation:_____
Mass of CuCl2 necessary: ____
(show calculation) Mass of CuCl2 used: ___NA___ Mass of filter paper: __0.29969__ Mass of beaker: _28.2034g_ Total mass after drying: _29.53319__ Mass of Cu3(PO4)2 ______
Mass of Na3PO4 in mixture: _____
(show calculation) Percent Na3PO4 in mixture:____
Answers
The balanced chemical equation for the reaction between sodium phosphate (Na₃PO₄) and copper(II) chloride (CuCl₂) is:
3 Na₃PO₄ + 2 CuCl₂ → Cu₃(PO₄)₂ + 6 NaCl
The mass of CuCl₂ necessary can be calculated based on the stoichiometry of the balanced equation and the given mass of the mixture.
Find the composition of a mixture?To determine the composition of a mixture of sodium phosphate (Na₃PO₄) and sodium chloride (NaCl), we need to perform a reaction between the mixture and copper(II) chloride (CuCl₂) and then analyze the results.
First, we balance the chemical equation by ensuring the number of atoms is equal on both sides. The balanced equation for the reaction is:
3 Na₃PO₄ + 2 CuCl₂ → Cu₃(PO₄)₂ + 6 NaCl
To calculate the mass of CuCl₂ necessary, we need to use the stoichiometry of the balanced equation. From the equation, we can see that 3 moles of Na₃PO₄ react with 2 moles of CuCl₂.
Therefore, the molar ratio of Na₃PO₄ to CuCl₂ is 3:2.
Given the mass of the mixture, we can determine the moles of Na₃PO₄ present in the mixture. Then, using the molar ratio, we can calculate the moles of CuCl₂ required. Finally, we convert the moles of CuCl₂ to mass using its molar mass.
To find the mass of CuCl₂ used, we need the molar mass of CuCl₂. However, the information provided doesn't include the molar mass of CuCl₂, so we cannot calculate the mass of CuCl₂ used in this case.
The remaining calculations regarding the mass of filter paper, mass of the beaker, total mass after drying, mass of Cu₃(PO₄)₂, mass of Na₃PO₄ in the mixture, and the percent Na₃PO₄ in the mixture cannot be determined without additional information.
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What is the source of the ions involved in a redox reaction that occurs in an electrochemical cell?
Answers
Answer:
D. Electrodes
Explanation:
A redox reaction is defined as the reaction in which both oxidation and reduction reactions take place and electrons are transferred from oxidized substance to the substance that is being reduced.
An electrochemical cell is consist of electrodes (anode and cathode), electrolyte solution, salt bridge, and conducing wire. An electrochemical cell undergoes redox reaction that produces an electric current due to the movement of ions through electrodes. Electrodes are the source of ions, as anode electrode undergoes oxidation reaction and releases electrons or ions and cathode, gains electrons through reduction reaction.
Hence, the correct answer is "D. Electrodes".
copper powder behaves like iron powder when it is mixed with sulphur and heated strongly name the product of this chemical reaction
Answers
Answer:
Copper sulphide.
Explanation:
Cu + S ---> CuS.
What is your carbon footprint?
the amount of carbon dioxide you use when recycling
the amount of oxygen put into the atmosphere due to your consumption of fossil fuels
the amount of carbon dioxide and oxygen in the atmosphere at any given time
the amount of carbon dioxide put into the atmosphere due to your consumption of fossil fuels
Answers
Answer:
c. .....................
Answer: the amount of carbon dioxide put into the atmosphere due to your consumption of fossil fuels
Your carbon footprint is the amount of carbon dioxide and other carbon compounds emitted, because of your use of fossil fuels.
Hope this helps!