Will magnesium oxidize zinc?
Final answer:
Magnesium has a greater tendency to be oxidized than zinc, so magnesium will not oxidize zinc. The activity series explains that magnesium is more active and readily loses electrons compared to zinc, leading to its oxidation in the presence of zinc ions.
Explanation:
No, magnesium will not oxidize zinc. Instead, the opposite is true because magnesium has a greater tendency to be oxidized than zinc, according to the activity series. The activity series ranks metals based on their ease of oxidation, with the metals at the top being the most active and hence more likely to lose electrons and be oxidized. Alkali metals, alkaline earth metals, and aluminum are at the top of this series, while metals like copper, gold, and silver are at the bottom. Since magnesium is higher in the activity series than zinc, it is more likely that magnesium will give up electrons to zinc ions, reducing the zinc ions to zinc metal and oxidizing the magnesium to magnesium ions.
Magnesium, when exposed to air, forms a passivation layer of magnesium oxycarbonate due to the reaction with carbon dioxide, which decreases its reactivity after initial exposure, but this does not affect its position in the activity series relative to zinc.
Using the example provided,
Mg(s) + Zn²⁻ (aq) → Mg²⁻(aq) + Zn(s)
This demonstrates that magnesium, not zinc, will be oxidized in a reaction between magnesium metal and zinc ions.
Magnesium has a greater tendency to oxidize compared to zinc, which can be understood with the help of the activity series of metals. In a reaction between magnesium and zinc, magnesium will be oxidized, while zinc will be reduced.
Explanation:Will magnesium oxidize zinc? To answer this question, we need to refer to the activity series of metals, which is a list that ranks metals according to their relative reactivity. Specifically, it orders metals by their tendency to be oxidized. Magnesium is more reactive than zinc, according to the activity series, and thus has a greater tendency to be oxidized.
Looking at the pairing of metals, when magnesium (Mg) and zinc (Zn) are considered, the reaction is as follows:
Mg(s) + Zn²⁺(aq) → Mg²⁺(aq) + Zn(s)
This equation indicates that magnesium metal will react with zinc ions, leading to the oxidation of magnesium and the reduction of zinc. Therefore, in a reaction where both magnesium and zinc are present, magnesium will be the one to oxidize, not zinc. This is because zinc is less active and has a lesser tendency to lose electrons compared to magnesium.
What is the total pressure on the gas after the 760 mm Hg has been added?
FIRST PHASE atmospheric pressure= 760 torr gas volume= 60 mL (760 mm Hg added to 2nd phase) SECOND PHASE atmospheric pressure= 760 torr Gas volume= 30 mL **image looks like a J. in the 2nd phase, there is 760 mm that is half of the J** if that makes any sense.
I am confused on how you solve the problem considering the torr and ml and mm and mmHg
Answer:
1520 torr = 1520mmHg = 2 atm.
Explanation:
Please note that it is just basic conversion.
1 torr = 1mmHg
1 atm = 760mmHg = 760 torr
As per the question,
FIRST PHASE:
760 torr pressure is applied which gave = 60mL volume to gas.
SECOND PHASE:
760mmHg pressure is applied which gave = 30mL volume to gas
Since we know that 1mmHg = 1 torr.
Therefore, total gas pressure = 760 + 760 = 1520 torr OR 1520mmHg
25) One canned juice drink is 15% orange juice; another is 5% orange juice. How many liters of each should be mixed together in order to get 10L that is 12% orange juice.
...?
What change or changes in the state of a gas bring about each of the following effects? a. the number of impacts per unit time on a given container wall increases. b. The average energy of impact of molecules with the wall of the container decreases c. The average distance between gas molecules increases d. The average speed of molecules in the gas mixture is increased
The impacts per unit time on a wall increase with rising temperature or particle number, the energy of impacts decreases when temperature falls, the distance between particles increases with growing volume, and the molecule speed increases with rising temperature.
Explanation:The changes in the state of a gas that could bring about the effects listed are closely related to the principles established by Amontons's law, Charles's law and Boyle's law.
The number of impacts per unit time on a given container wall increases if the temperature or the number of gas particles is increased. This is due to a rise in the average speed of the particles, resulting in more frequent collisions as per Amontons's law. The average energy of molecular impacts on the container walls decreases when the temperature is decreased, since molecular kinetic energy is directly proportional to temperature. The average distance between gas particles increases when the volume occupied by the gas increases, assuming constant temperature and number of gas particles. This is in accordance with Charles's law. The average speed of gas particles increases when the temperature is increased, resulting in a higher average kinetic energy of the molecules due to the direct proportionality between kinetic energy and temperature. This follows Amontons's law. Learn more about Gas Laws here:
https://brainly.com/question/12669509
#SPJ12
Which statement is correct about honey?
It contains disaccharides, a complex type of lipid.
It contains monosaccharides, the simplest carbohydrate.
It contains starch, which gives it a sweet taste.
It contains lipids, which give it a sweet taste.
The correct statement about the honey is It contains monosaccharides, the simplest carbohydrate.
Hence, Option (2) is correct answer.
What is Carbohydrate ?Carbohydrate are the sugar molecules. It is the main nutrient in food and drinks.
Now lets check all statement one by one:
Option (1): It contains disaccharides, a complex type of lipid.
Disaccharides are the type of sugar which is formed when the two monosaccharides are joined by linkage that is Glycosidic linkage.
So it is incorrect statement.
Option (2): It contains monosaccharides, the simplest carbohydrate.
Honey is made up of simple sugars that is glucose and fructose is known as monosaccharides.
So it is correct statement.
Option (3): It contains starch, which gives it a sweet taste.
It contains glucose which gives honey a sweet taste.
So it is incorrect statement.
Option (4): It contains lipids, which give it a sweet taste.
Honey contains the simple sugars which give the honey sweet taste.
So it is incorrect statement.
Thus, from above conclusion we can say that The correct statement about the honey is It contains monosaccharides, the simplest carbohydrate.
Hence, Option (2) is correct answer.
Learn more about the Carbohydrate here: https://brainly.com/question/20290845
#SPJ2
Since most sources of noise pollution are caused by essential machines, it is not possible to decrease the levels of sound.
True
False
What is the oxidation number for ba??
Answer: +2
I finished the assignment.
Which of the answer choices best represents the approximate relative mass of the three subatomic particles?
(Select all that apply.)
protons = neutrons
electrons = neutrons
neutrons > electrons
protons > electrons
Answer:
The choices that best represent relative mass are
protons = neutrons
neutrons > electrons
protons > electrons
Explanation:
If we assume that the relative mass of proton is 1, then the relative mass of neutron is also equal to 1. The relative mass of electron is about 1/2000 the mass of proton so if the mass of proton is 1 then the relative mass of electron would be 0.00055. Therefore, the mass of electron and neutron cannot be the same and the electron relative mass will be less than that of neutron and proton.
______is a mixture dead organic material that can be used as fertilizer
Answer:
Compost is a mixture dead organic material that can be used as fertilizer
Explanation:
Compost is a natural organic fertilizer that is prepared with different organic materials, providing nutrients and improving soil structure. Compost converts waste into fertilizer and valuable organic matter for soils.
The transformation of organic matter is carried out with composting, that is, the controlled decomposition of organic materials. Among them are fruits, pruning remains, vegetables, among others. The result of this procedure is a completely organic product that improves the soil structure and provides the necessary nutrients to the soil, all naturally.
Compost has a wide variety of advantages. Among them, it can be mentioned that urban waste is reduced considerably because it minimizes environmental problems related to its treatment and transportation. The soil structure will also be improved, helping with water retention, ventilation and the possible effects of frost. And the earth will eventually contain more organic matter and more nutrients; and it is possible to avoid the use of chemical fertilizers that can negatively affect the soil or the health of people. In addition, the lack of these substances produces an increase in the amount of microorganisms beneficial to the life cycle. Earthworms and other organisms will aerate the earth, prevent it from composting and favor the roots of plants.
So, "compost is a mixture dead organic material that can be used as fertilizer"
If solid NaCl is added to a saturated water solution of PbCl2 at 20o C, a precipitate is formed. How would this affect the value of the Ksp for [Pb2+][Cl-] in solution?
a) The Ksp increases.
b)The Ksp decreases.
c) The Ksp remains the same.
d) none of the above. ...?
Answer:
c) The Ksp remains the same.
Explanation:
The solubility product constant, Ksp is essentially an equilibrium constant which represents the extent to which a solute dissolves in a solvent.
In the given situation, the PbCl2 equilibrium can be represented as:
[tex]PbCl_{2}(s)\rightleftharpoons Pb^{2+}(aq)+2Cl^{-}(aq)[/tex]
[tex]Ksp = [Pb^{2+}][Cl^{-}]^{2}[/tex]
Addition of NaCl will introduce a common ion i.e. Cl-. This would increase its concentration and solubility. This will change the reaction quotient. However, the value of Ksp which is the 'equilibrium constant' will reamin unaffected since it is a constant at a given temperature.
Which is the electron configuration for bromine?
Electron configuration:
The arrangement of electrons in an atom by a superscript, in each sublevel is known as electron configuration. For example the d block elements have (n-1)d1-10 ns1-2 electronic configuration
The atomic number if bromine is 35 thus there are 35 electrons present which fill accorindg to the Hund’s rule and aufbau principle a follows:
Br-35 1s22s22p63s23p64s23d104p5
Or [Ar] 4s23d104p5
what is the name given to the electrons in the highest occupied energy level of an atom
HELLLLLLLLLLLLP ME PLS 10 points pls
What do the symbols in parenthesis indicate?
CaCl2(aq) + 2AgNO3(aq)) → Ca(NO3)2(aq) + 2AgCl(s)
1 the catalyst used in the reaction
2 the number of atoms of each reactant and product
3 the physical state of each reactant and product
4 the number of units of each reactant and product
When a material in the liquid state is vaporized and then condensed to a liquid, the steps in the process are, respectively,?
When a material in the liquid state is vaporized and then condensed to a liquid, the steps in the process are [tex]\boxed{{\text{endothermic}}}[/tex] and [tex]\boxed{{\text{exothermic}}}[/tex] respectively.
Further Explanation:
Changes are of two types:
(A) Physical changes:
It is the process in which the physical properties of the system are affected. These changes can also be reversed by physical methods. In these kinds of changes, the molecular composition of the substance remains the same. These are reversible in nature and no new substances are formed. For example, boiling of water, chopping of wood, melting of wax are physical changes.
(B) Chemical changes:
In this change, new substances are formed by the chemical combination of the previous substances. The chemical properties of substance change when it undergoes a chemical change. These are irreversible in nature. For example, fermentation of grapes, burning of wood, rusting of iron are chemical changes.
Condensation: It is the process when vapors are converted to the liquid state.
Evaporation: It is the process in which liquid is converted into vapors.
Endothermic reactions are those in which more energy needs to be supplied to the system than that released by it.
Exothermic reactions are those in which more energy is released by the system than that supplied to it.
In the first step, the liquid is vaporized. The intermolecular forces in liquid state are to be broken down and energy is supplied for the purpose. Hence it is an endothermic process.
In the second step, the gas is condensed. The intermolecular forces in the gas are weaker than that in liquid state and energy is released during the conversion of gas to liquid. Hence it is an exothermic process.
Learn more:
1. Which of these is an extensive property? https://brainly.com/question/1398514
2. Which of the phase changes is an exothermic change? https://brainly.com/question/1875234
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Physical and chemical changes
Keywords: physical change, chemical change, liquid, gas, evaporation, condensation, endothermic, exothermic, intermolecular forces.
Predict the products of the following reaction: Ba+P The equation may not be correctly balanced. Express your answers as chemical formulas separated by a comma. If no reaction occurs, enter noreaction.
what is the molar mass of AuCl3
Answer:
303.32557 g/mol.
Explanation:
Gold III Chloride is also known as acid gold trichloride.
PROPERTIES OF GOLD III CHLORIDE,AuCl3:
Gold III Chloride exist in colour appearance of Red crystals,and yellow crystals. It has a melting point of 254 °C and a density of
4.7 g/cm3. AuCl3 exist as a dimer( Au2Cl6) and it is somewhat covalent.
Molar mass is the the mass of one mole of a substance and is expressed in g/mol. Gold atomic mass is 196.96657, chlorine has 35.453.
Hence, molar mass of AuCl3= atomic number of Gold + atomic mass of chlorine × (number of atoms of chlorine in AuCl3).
Molar mass of AuCl3 = 196.96657 + (35.453 × 3). = 196.96657 + 106.359.
Molar mass of AuCl3= 303.32557 g/mol.
The molar mass of compound AuCl₃is 303.32557 g/mole.
Molar mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molar mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.
Molar masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.
Molar mass of AuCl₃ = 196.96657 + (35.453 × 3). = 196.96657 + 106.359.
Molar mass of AuCl₃= 303.32557 g/mol.
Learn more about molar mass,here:
https://brainly.com/question/12127540
#SPJ6
A chemist dissolved crystals of an unknown substance into water at room temperature. He found that 33 g of the substance can be dissolved into 100 mL of water. What property of the unknown substance was the chemist most likely investigating?
Answer:
Solubility.
Explanation:
When a chemist is dissolving crystal of unknown substance it means the chemist is checking the solubility of substance in the water.
As the chemist not measuring the temperature so he is not determining anything related to enthalpy, boiling point, melting point etc.
When we dissolve a particular amount of substance (to form saturated solution) in a particular volume of solvent it means we are checking it solubility.
which of the following is a product formed whrb NO2 and H2O react together A O2 B HNO3 C H2 D P(OH)2
Answer : The correct option is, (B) [tex]HNO_3[/tex]
Explanation :
Balanced chemical reaction : It is defined as the number of atoms of individual elements present on reactant side must be equal to the product side.
The balanced chemical reaction will be,
[tex]3NO_2+H_2O\rightarrow 2HNO_3+NO[/tex]
By the stoichiometry, we can say that 2 moles of [tex]NO_2[/tex] react with 1 mole of [tex]H_2O[/tex] to give 1 moles of [tex]HNO_3[/tex] and 1 mole of [tex]NO[/tex].
In this reaction, [tex]NO_2[/tex] and [tex]H_2O[/tex] are the reactants and [tex]HNO_3[/tex] and [tex]NO[/tex] are the products.
Hence, the correct option is, (B) [tex]HNO_3[/tex]
How many valence electrons do noble gases have?
1 or 2
2 or 8
2 or 3
8
when a wave hits a surface through which it cannot pass and bounces back it undergoes?
6. How is the number of neutrons in the nucleus of an atom calculated?
The solid sink to the bottom when placed in a container of water. what does this tell you about it's density
It can be concluded that the density of solid is greater than 1 g/cm³.
We have a solid which sank to the bottom when placed in water.
We have to investigate about its density.
What is the density of water?The density of water is 1 g/cm³.
According to the question -
If a Solid body sinks in water, then it can be concluded that the density of this solid body is greater than that of water. Mathematically -
ρ(b) > 1 g/cm³
Hence, it can be concluded that the density of solid is greater than
1 g/cm³.
To solve more questions on fluids, visit the link below-
https://brainly.com/question/22984182
#SPJ2
what's the name for the phase change from solid to gas
Which of the following is an SI base unit for measuring length?
Explanation:
the answer is kelvin
What is the mass of 5.05×1021 platinum atoms?
Answer: 1.6 gram
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
To calculate the moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given atoms}}{\text {Avogadro's Number}}[/tex]
[tex]\text{Number of moles of water}=\frac{5.05\times 10^{21}}{6.023\times 10^{23}}=8.4\times 10^{-3}moles[/tex]
1 mole of Platinum [tex]Pt[/tex] weighs 195 g
[tex]8.4\times 10^{-3}moles[/tex] of Platinum [tex]Pt[/tex] weigh =[tex]\frac{195}{1}\times 8.4\times 10^{-3}=1.6g[/tex]
Thus mass of [tex]5.05\times 10^{21}[/tex] platinum atoms is 1.6 gram.
Final answer:
To calculate the mass of 5.05×10²¹ platinum atoms, first find the number of moles using Avogadro's number, then multiply by the atomic mass of Pt, yielding approximately 1.636 grams of Pt.
Explanation:
To determine the mass of 5.05×10²¹platinum atoms, we need to use Avogadro's number (6.022×10²³ atoms/mol) and the atomic mass of platinum (Pt), which is approximately 195 g/mol. First, we calculate the number of moles of platinum atoms:
Number of moles = Number of atoms / Avogadro's number
Number of moles= 5.05×10²¹Pt atoms / 6.022×10²³ Pt atoms/mol
= 8.39×10⁻³ mol Pt
Next, we find the mass of the platinum atoms by multiplying the number of moles by the atomic mass of platinum:
Mass = Number of moles × Atomic mass of Pt
= 8.39×10⁻³ mol Pt × 195 g/mol
= 1.63605 g of Pt
Therefore, the mass of 5.05×10²¹ platinum atoms is approximately 1.636 g.
which of the following elements is chemically most similar to chlorine? A) helium b) sodium c) bromine d) hydrogen
Answer:
bromine
Explanation:
Any element with 7 electrons in the outermost shell will have similar properties. Thus other elements in the same column of the periodic table as chlorine will have similar properties. Elements in this column form what is called the Halogen series, which is composed of fluorine, chlorine, bromine, iodine, and astatine.
what particles in an,atom determine an elements atomic number and identity?
Determine the number of neutrons in an atom of Rg-272.
Explanation:
Roentgenium is a radiactive element which is represented by symbol Rg. Atomic number of Rg is 111 and its atomic mass is 272.
It is known that atomic number is the number of protons present in an atom. Whereas atomic mass is the sum of total number of protons and neutrons present in an atom.
That is, Atomic mass = no. of protons + no. of neutrons
272 = 111 + no. of neutrons
no. of neutrons = 272 - 111
= 161
Thus, we can conclude that there are 161 neutrons present in Rg-272.
A compound contains 38.7% K, 13.9% N, and 47.4% O by mass. What is the empirical formula of the compound?
A compound contains 38.7% K, 13.9% N, and 47.4% O by mass. What is the empirical formula of the compound?
The empirical formula for the compound is KNO3.
What is the empirical formula?
We first came up with two significant sorts of chemical formulas: molecular formula and empirical formula, by calculating the masses of all the constituent atoms that combine to create a molecule.
While the molecular formula provides the precise quantity of each unique element present in a molecule, the empirical formula of a compound provides the simplest ratio of the number of various atoms present. It is an empirical formula if it has been simplified. The empirical formula is multiplied by the widely used molecular formula.
The overall correlation between the empirical formula and the molecular formula is
Molecular Formula = n × Empirical Formula
Thus,
K : 38.7 g / 39.1 g/mol = 0.99N : 13.9 g / 14.0 g/mol = 0.99O : 47.4 g / 16.0 g/mol = 2.96
Dividing by the smallest:
K : 0.99 / 0.99 = 1N : 0.99 / 0.99 = 1O : 2.96 / 0.99 = 3
Therefore the formula for the compound is KNO3.
Read more about the empirical formula, here
https://brainly.com/question/14044066
#SPJ2
A student balanced the chemical equation Mg + O2 →MgO by writing Mg + O2 → MgO2. Was the equation balanced correctly? Explain your answer. If the equation was not balanced correctly, write the correctly balanced equation.
Explanation:
Charges on both magnesium and oxygen is 2. Though opposite in sign, they have equal charges so, both of them will be cancelled by each other.
As a result, formula of magnesium oxide is MgO and not [tex]MgO_{2}[/tex].
The student write the equation as [tex]Mg + O_2 \rightarrow MgO_2[/tex], it is not correct.
Therefore, given equation will be balanced as follows.
[tex]2Mg + O_{2} \rightarrow 2MgO[/tex]
Since, number of atoms on both reactant and product side are equal. Hence, this equation is completely balanced.
No, the equation [tex]Mg + O2 -- MgO2[/tex]is not balanced correctly. The correct balanced equation is
[tex]2Mg + O2 -- 2MgO.[/tex]
Explanation:A balanced chemical equation is a symbolic representation of a chemical reaction that ensures the conservation of mass and charge. It shows the reactants on the left side and the products on the right side, with coefficients indicating the relative quantities of substances involved to satisfy the law of conservation of matter.
The given chemical equation is not balanced correctly. To balance this equation, we need to ensure that there is an equal number of each element on both the reactant and product sides. In the unbalanced equation, there is one magnesium atom on the reactant side and two oxygen atoms on the product side. To balance it, we need to put a coefficient of 2 in front of MgO, resulting in the balanced equation: [tex]2Mg + O2 -- 2MgO.[/tex]
Learn more about Balancing chemical equations here:https://brainly.com/question/29233369
#SPJ6