Write the balanced net ionic equation for the reaction when aqueous (NH4)3PO4 and the a queso us Zn(NO3)2 are mixed in solution to form solid Zn3(PO4) and aqueous NH4NO3. Be sure to include the proper phases for all species within the reaction
The net ionic equation for the reaction between aqueous (NH₄)₃PO₄ and aqueous Zn(NO₃)₂ to form solid Zn₃(PO₄)₂ and aqueous NH₄NO₃ is:
PO₄³⁻ (aq) + Zn²⁺ (aq) ----> Zn₃(PO₄)₂ (s)What are net ionic equations?Net ionic equations are equations that show only the reactant ions that are involved in the formation of a non-ionic product.
In a net ionic equation, the spectator ions or the ions which appear on both sides of the reaction are eliminated.
Considering the given reaction between aqueous (NH₄)₃PO₄ and aqueous Zn(NO₃)₂ to form solid Zn₃(PO₄)₂ and aqueous NH₄NO₃:
The molecular equation is given below:
(NH₄)₃PO₄ (aq) + Zn(NO₃)₂ (aq) ----> Zn₃(PO₄)₂ (s) + NH₄NO₃ (aq)
The net ionic equation is:
PO₄³⁻ (aq) + Zn²⁺ (aq) ----> Zn₃(PO₄)₂ (s)
The product Zn₃(PO₄)₂ is insoluble and is obtained as a precipitate.
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HN5O3+Mg reaccion de sustitucion sencilla
Responder por favor lo necesito rapido
The balanced equation of the reaction could be written as; [tex]HN_{5} O_{3} + Mg ------ > MgO + HNO_{3}[/tex]
What is a reaction?We know that in chemistry, the term reaction has to do with the combination of two or more species to give a product. Now the process of the reaction would alter the chemical composition of the reactants as we move on the way to get the ne substances called the products. There would be a breaking down of the bonds that holds the reactant molecules together and then there is a recombination of the atoms in a different way so as to obtain the products of the reaction. This is how a chemical reaction takes place in a given system.
In this case we have the oxidation of the compound called [tex]HN_{5} O_{3}[/tex]. In this case, the compound is actually being oxidized as we can see from the process that would be shown in the reaction equation accurately.
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What type of energy is stored in the bonds of chemical compounds?
chemical energy
compound energy
element energy
kinetic energy
Answer: Chemical energy
Explanation:
Answer:
a
Explanation:
What can you say about the concentration of H+ ions and OH- ions in a solution that has a pH of 5?
A. A solution that has a pH of 5 has more hydrogen ions than hydroxide ions.
B. If you were to add an acid (hydrogen ion) to water, then the equilibrium shifts to the
left, and the hydroxide ion concentration decreases. Since the pH of 5 is very acidic
then the hydroxide ion basically just balances everything out.
C. It can be inferred that when dealing with a pH of 5, you are dealing with acid.
(I'm not sure if I should pick A or C. Help is needed asap and I appreciate it)
The concentration of hydrogen ions [H⁺] ions is 10⁻⁵ and hydroxide ions [OH⁻] ions is 10⁻⁹ in a solution of pH of 5. A) a solution that has a pH of 5 has more hydrogen ions than hydroxide ions.
C)when dealing with pH of 5, you are dealing with acid.
pH = - log [H⁺]
pH is given = 5
therefore,
5 = - log [H⁺]
[H⁺] = 10⁻⁵
now, [H⁺] [OH⁻] = 10⁻¹⁴
10⁻⁵ [OH⁻] = 10⁻¹⁴
[OH⁻] = 10⁻⁹
A solution that has pH below 7 is acidic solution with higher hydrogen ion concentration.
Thus, The concentration of hydrogen ions [H⁺] ions is 10⁻⁵ and hydroxide ions [OH⁻] ions is 10⁻⁹ in a solution of pH of 5. A) a solution that has a pH of 5 has more hydrogen ions than hydroxide ions.
C)when dealing with pH of 5, you are dealing with acid.
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Of the chemical formulas MgO, Br₂, Ne, and CO₂,
which represents both an element and a molecule?
Explain your answer.
Br2 represents both an element and a molecule.
A molecule is defined as a group of atoms bonded together. An element is defined as a substance that cannot be chemically broken down further into simpler substances. Br2 is only bromine and it is two bromine atoms boned together to form a molecule.
Is it possible to predict whether a precipitate will likely be white or a color other than white based on the position of the cation's element in the periodic table? Refer to a periodic table and the compiled data of the different teams with regard to the precipitate color of the cations that reacted to support your conclusion.
Is it possible to predict whether a precipitate will likely be white or a color other than white based on the position of the cation's element in the periodic table then the precipitate is determined by qualitative analysis
Precipitation is the formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid
Here the composition of relatively complex mixture of metal ion can be determined by using qualitative analysis then in group 1 there are insoluble chlorides in that most metal chloride salt are soluble in water and if no precipitate is form then this cation are not present in significant amount and when white precipitate is formed by the solution of AgNO₃ is added to an acidified unknown solution then white precipitate indicate that presence of Cl⁻ ions whereas all chromates are usually yellow orange or red precipitate
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You mix a solution with 17.1 grams NaCl, 29.8 grams NaHCO3, and 105 grams of water. What is the mass percent of NaCl in this solution?
Answer:
45.2662%
Explanation:
The sum of the chemicals (sodium chloride) and (Baking powder) and (water) is 151.9, The Salt(sodium chloride) is 29.8 grams and as a percent is 0.298%. 151.9x0.298=45.2662%, happy to help any other time!
Recycling of Carbon Quick Check
Pyrolysis is the most popular recycling method for recovering carbon fiber from composite trash because it essentially burns off the resin at high temperatures.
It has long been asserted that solvolysis, which dissolves the resin using a solvent, offers superior qualities.
What are the carbon cycle's seven steps?The Cycle of Carbon
Plants absorb carbon from the atmosphere.
Animals and plants both absorb carbon.
Animals and vegetation release carbon into the soil.
Living beings release carbon into the atmosphere.
When fuels are burned, carbon is released from fossil fuels into the atmosphere.
Oceans receive carbon from the atmosphere.
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a society decides that it needs to produce more corn to feed the growing population what must it do before it begins the production process
The transformation of inputs into outputs is referred to as the production process.
What is meant by the production process?
A production process is a way to use economic resources, such as labor, expensive machinery, or land, to create goods and services for customers.
The transformation of inputs into outputs is referred to as the production process. The primary categories include mass, batch, job, just-in-time, and flexible manufacturing systems.
A production process is a method of delivering goods and services to clients while utilizing resources or economic inputs like labor, expensive machinery, or land.
Therefore, the correct answer is option A. analyze existing resources, such as water availability
The complete question is:
Society decides that it needs to produce more corn to feed the growing population. What must it do before it begins the production process?
A. analyze existing resources, such as water availability
B. determine how people will receive the surplus crops
C. study the profitability of increasing corn production
D. understand who is in a position of authority to produce more
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What is the empirical formula of a substance that contains 0.250 mol of carbon, 0.500 mol of hydrogen, and 0.250 mol of oxygen?
The empirical formula of the compound is CH₂O.
What is the empirical formula of the compound?The empirical formula of a compound is the simplest formula of a compound showing the elements in the compound combined in their simplest mole ratios.
The empirical formula is determined from the simplest whole number mole ratio in which the elements in the compound combine.
The empirical formula of the compound is calculated below as follows:
mole of carbon = 0.250
mole of hydrogen = 0.50
moles of oxygen = 0.250
Diving by the smallest ratio to convert to whole number ratios
mole ratio of carbon to hydrogen to oxygen will be:
C = 0.25 / 0.25 = 1
H = 0.50 / 0.25 = 2
O = 0.25 / 0.25 = 1
Empirical formula = CH₂O
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On a phase diagram what does the triple point represent?
The conditions of the pressure and the temperature where all the phases coexists.
Explanations:A phase diagram is a diagram that shows the point where all the phases of matter coexists at equilibrium. This phase digram consists of the melting-freezing line, sublimation-deposition line and the
The point where all these lines coexists in equilibrium or intersects is known as the triple point.
he triple point is as marked in the diagram below;
10. The exhaust from a car contains
used. Scientists often refer to this energy that cannot be used as waste energy.
Answer:
Thermal energy
Explanation:
The exhaust from a car that cannot be used is called thermal energy since it's impossible to reuse its energy.
The exhaust from a car contains thermal energy used. Scientists often refer to thermal energy that cannot be used as waste energy.
What is thermal energy?
Thermal energy is defined as a type of energy which is contained within a system which is responsible for temperature rise.Heat is a type of thermal energy.It is concerned with the first law of thermodynamics.
Thermal energy arises from friction and drag.It includes the internal energy or enthalpy of a body of matter and radiation.It is related to internal energy and heat .It arises when a substance whose molecules or atoms are vibrating faster.
These vibrating molecules and atoms collide and as a result of which heat is generated in a substance , more the collision of particles , higher is the thermal energy.
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orbital diagrams Mo6+
The orbital diagram of Mo+6 show the number of paired and unpaired electrons of the ion.
What is an orbital diagram?An orbital diagram is defined as the type of diagram that shows the paired and unpaired electrons of an element or an ion.
The given element is known as molybdenum (Mo) with the atomic number of 42.
The ionic molybdenum (Mo+6) contains only 36 electrons as 6 electrons has been donated out.The ion given = Mo+6
The orbital diagram is as follows:
1s²= ¶¶
2s²= ¶¶
2p⁶=¶¶ ¶¶ ¶¶
3s²= ¶¶
3p⁶= ¶¶ ¶¶ ¶¶
3d¹⁰= ¶¶ ¶¶ ¶¶ ¶¶ ¶¶
4s²= ¶¶
4p⁶= ¶¶ ¶¶ ¶¶
The symbol ¶ is used to show the number of electrons in each ground state of the given ion.
In order words, the summary of electronic configuration of Mo+6 =
1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶
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Why is this on hear if people give you the wrong answers?!?
Answer:
I don't know but I do know that you need grammarly.
Explanation:
This sentence is grammatically correct, but its wordy, and hard to read.
Based on the image above of Silver from the periodic table, which isotope would be the most abundant?
109
or
107
Based on the image above of Silver from the periodic table, the isotope that would be the most abundant is Ag-107.
What are isotopes?Isotopes are atoms of the same element that differ from each other by their mass.
The difference in the mass of isotopes of elements is due to the difference in the number of neutrons in the nucleus.
The relative atomic mass of an element is the sum of the isotopic mass and relative abundances of the isotopes.
The relative atomic mass of an element is closer to the value of the isotope with the greatest relative abundance.
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look at the picture
To test the effectiveness of a new nutrient supplement one group of identical mice is given the supplement and the other group is not given any thing .which is the most complete list of the parts of the
experiment presented in this scenario.
The most complete list of the parts of the experiment presented in this scenario include:
Dependent variableExperimental groupControl group.What is Experiment?This refers to the procedures which are performed in other to support or refute a hypothesis. It is also used to ascertain the authenticity of the claim by other people such as scientists etc who review it.
In the scenario given, we were told that the group of identical mice is given the supplement and the other group is not given any thing which means that the control group is the one which wasn't given anything while the ones who were given something is the experimental group.
The dependent variable is the supplement which was given to the mice and is therefore the reason why option B was chosen as the correct choice.
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How many moles of silver are present in a silver spoon that has a mass of 12.86 g?
You do not need to type your units into the answer box. Please report your answer with three places after the decimal, and do not use scientific notation.
The number of moles of silver present in a silver spoon that has a mass of 12.86g is 0.12 moles.
How to calculate number of moles?The number of moles of a substance can be calculated by dividing the mass of the substance by its molar mass as follows:
The mass of a substance is the quantity of matter which a body contains, irrespective of its bulk or volume.
The mole of a substance is the amount of substance of a system which contains exactly 6.02214076 × 10²³ elementary entities e.g. atoms, molecules.
moles = mass ÷ molar mass
According to this question, silver spoon has a mass of 12.86g. The number of moles can be calculated as follows:
Molar mass of silver (Ag): 107.8682g/mol
moles = 12.86g ÷ 107.8682g/mol
moles = 0.12 moles
Therefore, 0.12 moles of silver are present in the silver spoon.
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How many molecules are contained in a 4.30-g sample of dimethylmercury?
The number of molecules contained in a 4.30-g sample of dimethylmercury is 1.12 × 10²² molecules.
How to calculate number of molecules?The number of molecules of a substance can be calculated by multiplying the number of moles in the substance by Avogadro's number as follows:
no of molecules = no of moles × 6.02 × 10²³
According to this question, 4.30-g sample of dimethylmercury (C₂H₆Hg) is given. The molar mass of C₂H₆Hg is 230.659 g/mol.
no of moles of dimethyl mercury = 4.3g ÷ 230.659 g/mol = 0.0186 moles
no of molecules of dimethyl mercury = 0.0186 moles × 6.02 × 10²³
no of molecules = 1.12 × 10²² molecules
Therefore, the number of molecules in 4.3g of C₂H₆Hg is calculated to be 1.12 × 10²² molecules.
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Which of the following statements is NOT true concerning the decomposition of a simple binarycompound?A) The products are unpredictable.B)The products are the constituent elements.C)Energy is usually required.D)The reactant could be an ionic or a molecular compound.E) The reactant is a single substance
Step 1 -
A decomposition reaction is a reaction in which a compound is decomposed, i.e., we usually heat a substance thus forming new substances, such as gaseous substances.
Generally speaking, a decomposition reaction will involve only one reactant: the substance to be decomposed.
[tex]\text{reactant}\to\text{ product 1 + product 2 + }\ldots[/tex]Step 2 - Examples of decomposition reactions
Let's take a closer look at some examples:
[tex]\begin{gathered} ZnCO_3\to ZnO+CO_2 \\ 2Al_2O_3\to4Al+3O_2 \\ H_2CO_3\to H_2O_{}+CO_2 \\ NH_4NO_3\to N_2O+2H_2O \end{gathered}[/tex]We can already state some conclusions:
a) The products are not always the same. They depend on the reactant. Therefore, they are not always predictable.
b) The reactant can be an ionic compound (such as ZnCO3) but also a covalent compound (such as H2CO3).
c) The reactant does not decompose into its constituent elements.
Step 3 - Finding the wrong answer
Therefore, the only wrong answer is item b), the products are the constituent elements.
electronic configuration of Lithium
The electronic configuration of Lithium is 1s²2s¹.
Which encoding is utilized to represent the arrangement of the lithium electrons?The configuration notation allows scientists to clearly describe and record how electrons are positioned around an atom's nucleus. As a result, it is simpler to comprehend and anticipate how atoms will interact to create chemical bonds.
Lithium is the third element with a total of three electrons. We shall describe the lithium electron configuration with the first two electrons in the 1s orbital. Li's third electron is in the 2s orbital since there can only be two electrons in the 1s orbital. Therefore, Li's electron configuration will be 1s22s1.
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When 0.384 g of sodium metal is added to an excess of hydrochloric acid, 3990 J of heat are produced. What is the enthalpy of the reaction as written?
The enthalpy of the reaction when 0.384 g of sodium metal is added to an excess of hydrochloric acid and 3990 J of heat is produced is 266 KJ.
The balanced chemical equation of reaction is -
2 Na(s) + 2 HCl(aq) ⟶ 2 NaCl(aq) + H₂(g)
We know that,
weight of sodium metal is 0.384 g
Molar mass of Na is 23 g/mol
we will calculate the number of moles,
Number of moles = Given mass
Molar mass
Moles of Na = 0.348 g = 0.015 mol
23 g/mol
We will calculate the energy in 1 mole of sodium metal
In 0.015 moles of sodium metal, 3990 J of energy is produced.
so, in 1 mole of sodium metal, 3990 J of energy is produced
0.015
In 1 mole, 266000 J of energy is produced.
1 J = 0.001 KJ
266000 J = 266 KJ
The enthalpy of the reaction will be 266 KJ.
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peter measured the height of a plant five times. He recorded the following results: 15.5 cm, 19.4 cm, 15.6 cm, 15.8 cm, 15.9 cm. which of the measurements is the least precise?
Peter measured the height of a plant five times then the measurements is the least precise is 15.5 cm
Measurement precision is the numerically using measure of imprecision as that standard deviation then calculated from the result by carrying replicate measurement and here given measurements are 15.5 cm, 19.4 cm, 15.6 cm, 15.8 cm, 15.9 cm and in that measurements the least precise are 15.5 cm
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The engine of a Ferrari F355 F1 sports car takes in air at 20.0 ∘C and 1.00 atm and compresses it adiabatically to 0.0900 times the original volume. The air may be treated as an ideal gas with γ=1.40
1) find the final temperature
2) find the final pressure
1. The final temperature is 768 Kelvin.
2. the final pressure is 29.1 atm
What is temperature?Temperature is described as a physical quantity that expresses the hotness of matter or radiation.
We will use the equations of the adiabatic process:
Pressure is described as the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
P11 ^ = P22
P2 = P1 (12)^
1.00 atm = (1/ 0.09)^ 7/5
P2 = 29.1 atm.
2 = 1 (1/2)−1
T2 = = 293 K ( 1 / 0.09)^ (7/5)^−1
T2 = 768 kelvin
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what is the ionic equation for Ba(ClO4)2(aq)+K2SO4(aq)⟶BaSO4(s)+2KClO4(aq)?
What is the pH of the solution obtained when 135 mL of 0.616 M NaOH is diluted to 16.0 L with water?
Express your answer using two decimal places.
The pH of a solution obtained when 135mL of 0.616 M NaOH is diluted to 16.0 L with water is 2.28.
How to calculate pH?The pH of a solution is the degree of acidity or alkalinity of a solution.
The pH of a solution can be calculated by using the following equation;
pH = - log {H+}
However, the molarity or concentration of the NaOH solution must first be calculated as follows:
C₁V₁ = C₂V₂
Where;
C₁ = initial concentrationV₁ = initial volumeC₂ = final concentrationV₂ = final volume135 × 0.616 = C × 16000
83.16 = 16000C
C = 0.0052M
pH of NaOH = - log {0.0052}
pH = 2.28
Therefore, the pH of the NaOH solution is 2.28.
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How many grams of solute are present in 445 mL of 0.660 M KBr?
Answer: 34.951 g of KBr is the amount in 445mL of .660M KBr.
Explanation: The solute is what is dissolved in the solvent. In this case the solute is KBr. The Molecular weight of KBr is 119.002g
Molarity = n/V, so .660 M = x moles/1L, so it's .660 moles/L.
.660 mol KBr x 119.002 g KBr/1 mole KBr = 78.541 grams of KBr in one mole of KBr.
78.541 g KBr/1 mol KBr = X g of KBr/0.445 L KBr cross multiply and divide to get grams of KBr in 445mL (which is the same as 0.445 L
Therefore, 34.951 g of KBr is the amount in 445mL of .660M KBr.
A scientist conducted an experiment to determine how the amount of salt in a body of
water affects the number of plants that can live in the water. What is the independent
(testing) variable?
the amount of water
the time it took for the plants to grow
the number of plants
O the amount of salt
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The number of plants in the water is the independent (testing) variable.
What may be altered during an experiment?Anything that may vary or be altered is considered a variable. In other words, it is any factor in an experiment that may be modified, controlled for, or assessed.
Scientists cannot ascribe changes or discrepancies in outcomes to a single source when more than one variable is altered in an experiment. The outcomes may be directly ascribed to the independent variable by looking at and modifying one variable at a time.
What variables are changeable or manipulable?In an experiment, the independent variable is a manipulated variable. It's termed "manipulated" because it can be changed. In other words, you may choose whether to raise or reduce it ahead of time.
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An ideal gas (which is is a hypothetical gas that conforms to the laws governing gas behavior) confined to a container with a massless piston at the top. (Figure 2) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 5.90 to 2.95 L . When the external pressure is increased to 2.50 atm , the gas further compresses from 2.95 to 2.36 L .
In a separate experiment with the same initial conditions, a pressure of 2.50 atm was applied to the ideal gas, decreasing its volume from 5.90 to 2.36 L in one step.
If the final temperature was the same for both processes, what is the difference between q for the two-step process and q for the one-step process in joules?
Express your answer with the appropriate units
The difference that we can obtain for the calculation of the two step and the one step process is -150 J
What is the first law of thermodynamics?In general, the study of heat is what we generally refer to as thermodynamics. Recall that heat has a number of visible effects on a substance such as the increase in the temperature of the substance as well as a change in the state of the substance.
With this in mind, let us try to obtain the heat for the two step process as well as in the one step process as we can see from the question that we have before us just above in this context.
For the first part of the two step process, the heat is obtained from;
q = p dV
q = 2.00 atm (2.95 L - 5.90) = -5.9 atm L or -598 J
For the second step of the two step process
q = 2.5 (2.36 L - 2.95) = -149 J
Total heat for the two step process = -598 J + (-149 J) = -747 J
The value of the heat from the one step process is obtained as;
q = 2.5(2.36 L - 5.90L)
q = -897 J
Difference between q for the two-step process and q for the one-step process in joules;
-897 J - ( -747 J) = -150 J
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"Nitric acid forms in the atmosphere through the following balanced reaction:
4NO(g) + 3O2(g) + 2H20 and excess oxygen gas, what is the percent yield for hte reaction?
The percent yield of the reaction is calculated as follows:
Percent yield = actual yield/ theoretical yield * 100 %
The percent yield of the reaction is less than 100%.
What is the percent yield of a given reaction?The percent yield of a reaction is the ratio of the actual yield of a reaction and the theoretical yield of the reaction.
Mathematically:
Percent yield = actual yield/ theoretical yield * 100 %The percent yield of any reaction is never 100& percent because no reaction actually goes to completion forming exactly all the product that is expected.
Considering the give reaction of the formation of nitric acid in the atmosphere:
The equation of the reaction is:
4 NO (g) + 3 O₂ (g) + 2 H₂0 (g) ---> 4 HNO₃ + excess oxygen.
The percent yield will require the actual yield and the theoretical yield in order to be calculated.
For example, if the actual yield is 12 g and the theoretical yield is 15 g, percent yield = 12/15 * 100%
Percent yield = 80%
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