Answers
The balanced reaction equation can be written as;
[tex]3Hg(OH)_2 + 2H_3PO_4 --- > Hg_3(PO_4)_2 + 6H_2O[/tex]
How to balance chemical reactionBalancing a chemical reaction involves ensuring that the number of atoms of each element is the same on both sides of the equation. Start by writing the unbalanced equation and counting the number of atoms for each element. Begin balancing with the most complex molecules and then move on to balancing other elements.
From the question, we would have to look at the reactants and the products and know the coefficients to add so that we obtain the balanced reaction so we have that the reaction equation is;
[tex]3Hg(OH)_2 + 2H_3PO_4 --- > Hg_3(PO_4)_2 + 6H_2O[/tex]
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Related Questions
Write the proper word equation to express the following chemical reaction: 4Fe (s) + 3Sn(NO3)4 (aq) Imported Asset 4Fe(NO3)3 (aq) + 3Sn
Answers
4Fe + 3Sn(NO3)4 = 4Fe(NO3)3 + 3Sn is as below
Iron + Tin (iv) nitrate = iron(iii) nitrate + Tin
iron displaces tin from it compound ( Tin (iv) nitrate to form iron (iii) nitrate and tin.
from the equation above 4 moles of Fe displaces 3 moles of Sn(NO3)4 to form 4 moles of Fe(NO3)3 and 3 moles of SN
The midpoint of GH is M(5,3). One endpoint is G(1,-5). Find the coordinates of the other endpoint H.
Answers
Midpoint formula: (x1 + x2)/2, (y1 + y2)/2, where (x1, y1) and (x2, y2) are the endpoints of the segment
x-coordinate of midpoint = (x1 + x2)/2
5 = (1 + x2)/2
10 = 1 + x2
9 = x2
y-coordinate of midpoint = (y1 + y2)/2
3 = (-5 + y2)/2
6 = -5 + y2
11 = y2
The coordinates of the other endpoint, H, can be calculated using the midpoint formula: Endpoint = (2 x Midpoint) - Known Endpoint. Applying this formula, we find that the coordinates of endpoint H are (9, 11).
Explanation:The subject of this question is Mathematics, specifically coordinate geometry. Given the midpoint M(5,3) and one endpoint G(1,-5), we're asked to find the coordinates of the other endpoint, H. The formula to find the coordinates of an endpoint when given the midpoint and another endpoint is as follows:
Endpoint = (2 x Midpoint) - Known Endpoint
So, applying this formula, we find H to be:
H = (2x5 - 1, 2x3 - (-5)) = (9, 11).
So the other endpoint H is at (9, 11).
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A student fires a bow and arrow in gym class and all his arrows land close to each other, but not on the bullseye. This student could be said to be
Answers
A student whose arrows land close together but not on the bullseye is precise but not accurate. Precision implies consistent results, while accuracy means hitting the intended target.
When a student fires a bow and arrow in gym class and all his arrows land close to each other, but not on the bullseye, the student could be said to be precise but not accurate.
Precision refers to the consistency of the student's shots, as the arrows land near each other, indicating that the student is able to repeat the same motion with consistency. However, accuracy relates to how close the shots are to the intended target, the bullseye, which in this case, the student's arrows are not; thus, the student is not shooting accurately.
To help illustrate this concept, imagine three scenarios represented in Figure 1.27:
(a) Arrows that are close to both the bull's eye and one another are both accurate and precise.
(b) Arrows that are close to one another but not on target are precise but not accurate.
(c) Arrows that are neither on target nor close to one another are neither accurate nor precise.
The student's arrows are precise but not accurate, meaning they consistently hit a similar spot but not the desired target. Accuracy refers to how close a measurement or result is to the true or desired value, while precision refers to how close multiple measurements or results are to one another. With practice and adjustment of aim, the student can improve both accuracy and precision in archery.
Explanation:In this scenario, the student's arrows are close to each other but not on the bullseye. This means that the student's arrows are precise because they consistently hit a similar spot, but they are not accurate because they are not hitting the desired target.
Accuracy refers to how close a measurement or result is to the true or desired value, while precision refers to how close multiple measurements or results are to one another. In this case, the student's arrows are precise but not accurate.
It is important to strive for both accuracy and precision in any endeavor, including archery. With practice and adjustment of aim, the student can improve both the accuracy and precision of their shots.
If an element has three isotopes with known natural abundance percentages, what other information is needed to find the average atomic mass of the element?
Answers
isotopes are atoms of the same elements with different mass numbers , in other words same number of protons but different numbers of neutrons.
to find the average atomic mass we need to know the atomic masses of all the isotopes in addition to the natural abundance percentages of the isotopes.
answer is we need to know the atomic masses of the isotopes as well
The mass of each isotope.
In an endothermic reaction, the total energy at the beginning of the reaction is what
Answers
The energy at the beginning is low than at the
end of the reaction.
Endothermic reactions gain the energy from
surroundings to do the reaction. Since the thermal energy gain, the temperature
of the surrounding decreases and the enthalpy for those reactions is a positive
value. The products have higher energy than the reactants.
In the endothermic reaction, the total energy in the beginning is less than that in the end.
What is endothermic reaction?The endothermic relations are those in which the reactants absorb heat from the surrounding to carry out the reaction and to make product.
These reactions absorb energy, thus lower the temperature of the surrounding.
Examples are melting ice cubes, evaporating water.
Thus, due to these reactions takes energy from surrounding, the energy in the beginning is low.
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What type of air mass most likely located over atlanta and Georgia
Answers
Atlanta and Georgia have a humid subtropical climate (hot and humid summers, mild winters) with four distinct seasons and good precipitation year round.
Gulf of Mexico can bring warm air and there is cold air from Artic.
The gaseous product of a reaction is collected in a 25.0-l container at 27
c. the pressure in the container is 300.0 kpa and the gas has a mass of 96.0 g. how many moles of the gas are in the container?
Answers
PV = nRT
P - pressure - 300.0 kPa
V - volume - 25.0 x 10⁻³ m³
n - number of moles
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature in Kelvin - 27 °C + 273 = 300 K
substituting these values in the equation
300.0 kPa x 25.0 x 10⁻³ m³ = n x 8.314 Jmol⁻¹K⁻¹ x 300 K
n = 3.01 mol
number of mols of gas - 3.01 mol
The number of moles of the gas in the system can be given by the ideal gas equation. There are 3.00 moles of gas in a 25.0 L container.
What is an ideal gas?An ideal gas is a law that gives the relationship between the pressure, volume, moles, and temperature of the hypothetical gas conditions.
Given,
Pressure (P) = 300 kPa = 2.96 atm
Volume (V) = 25 L
Temperature (T) = 300.15 K
Gas constant (R) = 0.0821 atm.L/Kmol
Substituting values in the ideal gas equation, moles are calculated as:
PV = nRT
n = PV ÷ RT
= 2.96 × 25 ÷ 0.0821 × 300.15
= 74 ÷ 24.64
= 3.00 moles
Therefore, 3.00 moles of gas are present in a 25 L container.
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Which piece of lab equipment is BEST used for storing sulfuric acid for a long period of time? A) soup can B) graduated cylinder C) metal tin with a cover D) glass bottle with a rubber top or stopper
Answers
The correct option is D. Glass bottle with a rubber top or stopper Equipment is Best used for storing sulfuric acid for a long period of time.
What is sulfuric acid?Concentrated sulfuric acid is a hygroscopic material that, when in contact with air, absorbs moisture. As a result, it is kept in airtight bottles.
Acid sulfuric (also known as sulphuric acid, battery acid, vitriol, mineral acid and hydrogen sulfate).
The production of fertilizers, pigments, dyes, medicines, explosives, detergents, inorganic salts and acids, as well as petroleum refining and metallurgical operations like plating, anodizing, and steel fabrication all utilize different amounts of acid.
Therefore, The correct option is D. Glass bottle with a rubber top or stopper Equipment is Best used for storing sulfuric acid for a long period of time.
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Which will dissolve faster in water one gram cube of sugar or one gram of powder sugar?
Answers
Powdered sugar dissolves faster than a cube of sugar because it has a greater surface area, which increases the frequency of collisions between the sugar particles and water molecules, hence speeding up the dissolving process.
In the comparison of a one gram cube of sugar and one gram of powdered sugar dissolving in water, the powdered sugar will dissolve faster. This phenomenon is because dissolving is a surface-driven process where solvent molecules collide with the surface of the solute.
The powdered sugar has a greater surface area exposed to the water, increasing the opportunity for these collisions to occur, which enhances the rate of dissolution. Moreover, stirring the solution can increase the rate at which both the powdered and the cube sugar dissolve. However, since the cube has less surface area exposed compared to powdered sugar, the powdered form will still dissolve more quickly, even with agitation.
The speed at which the sugar dissolves isn't dependent on the type of sugar since both forms have the same chemical composition, but rather on the physical form of the sugar which affects the overall surface area available for dissolution.
What variables can be used to determine the pressure exerted by a gas?
Answers
Why should you pay attention to the physical states of reactants and products when writing elquilibrium constant expressions?
Answers
For example, equilibrium constant expression Kp for reaction:
A(s) + 2B(s) ⇄ 4C(g) + D(g).
will be: Kp = [C]⁴·[D].
But for reaction A(g) + 2B(g) ⇄ 4C(g) + D(g), will be:
Kp = [C]⁴·[D] / [A]·[B]².
Convert to standard notation 7.77x10^-4
Answers
The exponent value tells you how many times you need to move the period in the number, and the sign tells the direction (positive, left; negative, right; when converting from standard to exponential, and the opposite when converting from exponential to standard).
Which substance would be least likely to dissolve in a polar solvent?
Answers
Octane (C8H18) and naphthalene are nonpolar substances and would be least likely to dissolve in a polar solvent like water. Methanol (CH3OH), sodium sulfate (Na2SO4), LiCl, and benzoic acid (CH2CO2H) are polar or ionic and would more readily dissolve.
Explanation:To predict which substance would be least likely to dissolve in a polar solvent like water, one must consider the polarity of the molecules involved. In general, "like dissolves like," which means that polar solvents will dissolve polar substances and nonpolar solvents will dissolve nonpolar substances.
Methanol (CH3OH) and sodium sulfate (Na2SO4) are polar and will likely dissolve in water due to their ability to create intermolecular hydrogen bonds and ionic interactions, respectively. On the other hand, octane (C8H18) is nonpolar, consisting mostly of C-H bonds, and would have the least tendency to dissolve in a polar solvent due to dispersion forces being the primary intermolecular interaction.
Considering LiCl, benzoic acid (CH2CO2H), and naphthalene, LiCl and benzoic acid are more likely to dissolve in water due to their ionic and polar nature, respectively, while naphthalene, being nonpolar, would be the least likely to dissolve.
What is the formula and name of a hydrate that is 85.3% barium chloride and 14.7% water
Answers
Final answer:
To find the formula of a hydrate composed of 85.3% barium chloride and 14.7% water, we calculate the molar mass of both compounds, and then determine the molar ratio of barium chloride to water. The simplest whole number ratio gives us the empirical formula of the hydrate, including the number of water molecules associated with each formula unit of barium chloride.
Explanation:
The formula and name of a hydrate that is 85.3% barium chloride and 14.7% water can be determined using stoichiometric calculations. First, one needs to understand that a hydrate is an ionic compound that includes water molecules directly attached to its crystal lattice. The general formula for a hydrate is expressed as XYZ·nH₂O, where XYZ is the ionic compound, and n represents the number of water molecules per formula unit.
In order to find the formula of the hydrate of barium chloride, we need to calculate the molar mass of barium chloride (BaCl₂) and water (H₂O). The molar mass of BaCl₂ is approximately 208.23 g/mol and for H₂O it's about 18.015 g/mol. Since the hydrate consists of 85.3% BaCl₂, we can infer that 100 g of the hydrate would contain 85.3 g of BaCl₂ and 14.7 g of H₂O. We can then calculate the molar ratio of BaCl₂ to H₂O and find the simplest whole number ratio to determine the formula of the hydrate. Using this method, the name and formula of the hydrate would reflect the stoichiometry of barium chloride to water in the compound.
The formula of the hydrate is a. BaCl₂ · 2H₂O.
The formula of the hydrate is BaCl₂ · 2H₂O, and its name is barium chloride dihydrate.
This is determined by calculating the molar ratio of barium chloride to water in the sample. The ratio indicates that there are 2 water molecules for every formula unit of barium chloride.To determine the formula and name of a hydrate that is 85.3% barium chloride (BaCl₂) and 14.7% water (H₂O), we start by assuming we have a 100 g sample. Therefore, we have 85.3 g of BaCl₂ and 14.7 g of H₂O.The molar mass of BaCl₂ is approximately 208.23 g/mol, and for H₂O, it is approximately 18.02 g/mol.
Moles of BaCl₂ = 85.3 g / 208.23 g/mol ≈ 0.409 molMoles of H₂O = 14.7 g / 18.02 g/mol ≈ 0.816 molNext, we find the ratio of moles of H₂O to moles of BaCl₂: 0.816 mol H₂O / 0.409 mol BaCl₂ ≈ 2.
This indicates that there are 2 water molecules for every formula unit of BaCl₂.The formula of the hydrate is therefore BaCl₂ · 2H₂O.The name of this compound is barium chloride dihydrate.
Correct question is: What is the formula and name of a hydrate that is 85.3% barium chloride and 14.7% water
a. BaCl₂ · 2H₂O.
b. BaCl₃ . 2H₂O.
c. Ba₂Cl₂ · 2H₂O.
d. BaCl₂ · 3H₂O.
Determine the mass of 8.59 ×1023 atoms cl. answer in units of g.
Answers
8.59 *10²³atoms*(1 mol/6.02*10²³ atoms) = (8.59/6.02) mol
M(Cl)=35.5 g/mol
(8.59/6.02) mol*35.5 g/mol=50.7 g
Determine the oxidation state of the metals in pbcro4. 1. pb = +1, cr = +4 2. pb = +2, cr = +4 3. pb = +2, cr = +6 4. pb = +1, cr = +1 5. pb = +1, cr = +6
Answers
anion is CrO₄²⁻
we need to then find the oxidation number of Pb which is the same as its charge
when we make compounds, the charges of the cations and anions are exchanged.
Charge of Pb is then Pb²⁺
since charge of monoatomic ion is equal to oxidation number of the ion
oxidation number of Pb = +2
net charge of CrO₄²⁻ is -2
oxidation number of Cr + (4 x oxidation number of O) = -2
oxidation number of O is usually -2
oxidation number of Cr = y
y + (4 x -2 ) = -2
y - 8 = -2
y = +6
oxidation number of Cr is +6
answer is
3. pb = +2, cr = +6
The oxidation state of the lead and chromium metal in the PbCrO₄ compound is +2 and +6 respectively.
What is oxidation state?Oxidation state of any atom tells about the number of exchangeable electrons from the outermost shell of that atom.
As we know that in the compound PbCrO₄, CrO₄ is an anion and charge on this is -2 i.e. it is represented as CrO₄²⁻. We know that oxidation state of each oxygen atom is -2 and let us assume the oxidation state of chromium is y, so we calculate the value of y for CrO₄²⁻ as:
y + 4(-2) = -2
y = -2 + 8 = 6
Let the oxidation state of lead is x and calculation for that from PbCrO₄ will be done as:
x + 6 + 4(-2) = 0
x = 8 - 6 = 2
Oxidation state of Pb is +2 and of Cr is +6.
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The mass of a mole of carbon atoms is 12.011 grams. What is the mass of a single atom of carbon?
Answers
Avagadros constant states that 1 mol of any substance is made of 6.022 x 10^23 units.
These units could be atoms making up elements or molecules making up compounds
1 mol of C is made of 6.022 x 10^23 atoms of C
Since 1 mol of C has a mass of 12.011 g
Therefore 6.022 x 10^23 atoms of C weigh 12.011 g
Then 1 atom of C weighs -12.011 g / 6.022 x 10^23 atoms = 1.99 x 10^(-23) g
Mass of 1 C atom is 1.99 x 10^(-23) g
Answer:
1.99 x 10^(-23) g
Explanation:
Which element would you expect to behave the most like carbon (c)? apex?
Answers
Answer:Germanium (Ge)
Explanation:
When combined two gases have a pressure of 4.0 atm.if one has a pressure of 1.5 atm , what is the pressure of the second gas?
Answers
Total pressure = Partial pressure of one gas + partial pressure of the second gas.Therefore; the pressure of the second gas will be; 2.5 atm
This is the uneven distribution of bonding electrons in a molecule creating partially positive and negative sides of that molecule. example: water and ammonia have this, but methane does not
Answers
In each of the above system, central element undergoes sp3 hybridization.
For example, in H2O, oxygen undergoes sp3 hydridization
in case of NH3, nitrogen underdoes sp3 hybridization,
and in case of CH4, methane undergoes sp3 hydridization.
Followed by hybridization, the hybridized orbitals are unsymmetrically occupied in case of H2O and NH3. In water, two hybridized orbitals are occupied by H atom and remaining two orbitals contain lone pair of electrons. In case of NH3, three hybridized orbitals are utilized for bonding with H atom, while one hybridized orbital contain lone pair of electron. In contrast to this, in case of methane all the four hybridized orbitals are utilized for bonding with hydrogen. Thus, methane is symmetrically substituted in contrast to water and ammonia. Due to this, there is the uneven distribution of bonding electrons in H2O and NH3, thereby creating a partially positive and negative sides of that molecule.
HELPPP WILL GIVE BRAINLIEST
The scientist Robert Boyle observed that a gas can expand to fill its container. Explain how Boyle's observation is explained by the Kinetic Theory of Matter.
Answers
1) Sizes of Gas particles are very small, small enough to be considered as neglegible.
2) Kinetic energy of gas paricles is greater than that of Solids and liquids.
3) Distance between gas molecules is very large. That is why Boyle observed that a gas can expand to fill entire container.
4) Collisions take place between gas molecules and with the walls of container causing them to create pressure.
5) Forces of attraction between gas molecules is negligible, therefore they don't interact and never come close to each other.
6) Gravity has almost zero effect on the molecules of gas.
which of the following is the correct structural formula for ethene
Answers
CnH2n
Whereas in Ethene, n = 2, so
C₂H₄
Therefore, in ethene there are two carbon atoms doubly bonded to each other via one sigma and one pi bond. Also each carbon atom is further covalently bonded to two hydrogen atoms via sigma bond as shown below,
What characteristics are shared by all alkali metals and alkaline earth metals? no answer provided
a. they do not react with water at all.
b. they are strong and shiny.
c. they form alkaline solutions when mixed with water.
d. they conduct electricity very well?
Answers
Alkali metals and alkaline earth metals share several characteristics: they react with water to form alkaline solutions, they are shiny and have a metallic appearance, and they conduct electricity well.
Explanation:Alkali metals and alkaline earth metals share several characteristics:
They react with water to form alkaline solutions. Alkali metals like sodium and potassium are highly reactive and can vigorously react with water, releasing hydrogen gas and forming alkaline solutions.They are shiny and have a metallic appearance. Alkali metals and alkaline earth metals are good conductors of heat and electricity, which gives them a shiny and metallic appearance.They conduct electricity well. Both alkali metals and alkaline earth metals are good conductors of electricity due to the presence of loosely held outer electrons.Learn more about characteristics of alkali metals and alkaline earth metals here:https://brainly.com/question/12708549
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Which of the following shows the correct rearrangement of the the heat equation q = mCpΔT to solve for specific heat?
answer is C
Cp-=q/m^T
Answers
q = m*Cp*ΔT
when q is Heat energy in Joules
and m is the mass of the substance in Kg
and Cp is the specific heat (J/Kg.K)
and Δ T is the change in temperature in Kelvin
so, by rearranging the formula we can get the specific heat Cp from:
∴Cp = q / m*ΔT
Answer:
[tex]C_{p} = \frac{q}{m(deltaT)}[/tex]
Given the equation zn(s) + 2 hcl(aq) → zncl2(aq) + h2(g), what mass of hydrogen gas is produced when 2.8 g zn is reacted with excess aqueous hydrocholric acid?
Answers
Final answer:
To calculate the mass of hydrogen gas produced, we use stoichiometry of the chemical reaction between Zn and excess HCl. After determining moles of Zn from the given mass, we find the moles of H2, which is equal due to the 1:1 molar ratio, and then multiply by the molar mass of H2 to get 0.0863 g of hydrogen gas.
Explanation:
Calculating the Mass of Hydrogen Gas
To calculate the mass of hydrogen gas produced when 2.8 g of Zn is reacted with excess hydrochloric acid (HCl), we will use the stoichiometry of the balanced chemical reaction: Zn(s) + 2 HCl(aq) → ZnCl₂ (aq) + H₂(g). The reaction shows that one mole of Zn produces one mole of H2. First, we find the molar mass of Zn, which is approximately 65.38 g/mol.
Step 1: Calculate the moles of Zn.
Moles of Zn = (mass of Zn) / (molar mass of Zn) = 2.8 g / 65.38 g/mol = 0.0428 molStep 2: Determine the moles of H2 formed using the molar ratio from the balanced equation (1:1).
Moles of H2 = Moles of Zn = 0.0428 molStep 3: Calculate the mass of H2 using the molar mass of H2 (approximately 2.016 g/mol).
Mass of H2 = Moles of H2 × Molar mass of H2 = 0.0428 mol × 2.016 g/mol = 0.0863 gTherefore, the mass of hydrogen gas produced is 0.0863 g.
A gas originally occupying 10.1 L at 0.925 atm and 25 C is changed to 12.2 L at 625 torr. What is the new temperature?
Answers
The question is about the combined gas law in Chemistry and using it to solve for the new temperature of a gas given changes in its volume and pressure.
Explanation:The subject of this question revolves around understanding how variables of a gas such as pressure, temperature and volume change in relation to each other. This falls under the concept of gas laws in Chemistry, particularly the combined gas law.
In this scenario, we are given the initial volume, pressure, and temperature of a gas, and we are asked to find the new temperature after the volume and pressure have been changed. To do this, we have to apply the combined gas law formula, which is (P1V1/T1 = P2V2/T2).
To start, we should convert all our pressures to the same unit- atm, since our given value is in atm. 625 torr is equivalent to 0.821 atm. Substituting all the given and converted values into the combined gas law will allow us to solve for T2, the new temperature of the gas.
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Phytic acid and oxalic acid ________ the absorption of dietary iron.
Answers
Which of the following are monomers of the genetic material DNA?
monosaccharides
fatty acids
nucleotides
amino acids
Answers
Nucleotides are the monomers of DNA.
Explanation:
Nucleic Acids polymers (DNA and RNA) are made up of repeating called Nucleotides.
Nucleotides consist of following parts;
1) Nucleoside: Which is made up of 5-carbon sugar and a nitrogenous base. Colored in RED.
2) A Phosphate group. Colored in BLUE.
Answer:
Nucleotides
Explanation:
The monomer units of DNA are nucleotides.
Kinetic energy is the energy of motion.
a) True
b) False
Answers
Kinetic energy is the action of which an object releases the energy stored from potential energy. This causes the object to move, which puts the object in motion.
Which of these has the highest h+ concentration? lemon juice, ph = 2.3 red wine, ph = 3.2 tomato juice, ph = 4.7 household ammonia, ph = 10.8?
Answers
Answer:
Lemon juice has the highest [tex]H^+[/tex] concentration.
Explanation:
The pH of the solution id the negative logarithm of hydrogen ion concentration in an aqueous solution.
[tex]pH=-\log[H^+][/tex]
1) Lemon juice with pH = 2.3
[tex]2.3=-\log[H^+][/tex]
[tex][H^+]=0.005011 M[/tex]
2)Wine with pH = 3.2
[tex]3.2=-\log[H^+][/tex]
[tex][H^+]=0.006309 M[/tex]
3)Tomato juice with pH = 4.7
[tex]4.7=-\log[H^+][/tex]
[tex][H^+]=1.99\times 10^{-5} M[/tex]
4)House hold ammonia with pH = 10.8
[tex]10.8=-\log[H^+][/tex]
[tex][H^+]=1.584\times^{-11} M[/tex]
Lemon juice with a pH of 2.3 has the lowest pH value.
What is the pH scale?The pH scale measures the acidity or alkalinity of a solution, with lower pH values indicating higher acidity and higher pH values indicating higher alkalinity.
For this question, we want to find the solution with the highest H+ (hydrogen ion) concentration, which corresponds to the lowest pH value.
Considering all the options given; Lemon juice with a pH of 2.3 has the lowest pH value, indicating the highest H+ concentration.
Therefore, lemon juice has the highest H+ concentration among the given options.
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