what is the molar mass of mg3(po4)2, a substance formerly used in medicine as an antacid? group of answer choices 150.3 g 262.9 g 118.3 g 214.3 g 71.3 g

The equation must have the following form to be balanced: 4CO2 + 2H2O = 2C2H2 + 5O2

S8: O2 = 1/8; S8 utilized = 240/8 = 30SO2 generated is equal to the number of sulphur molecules used, which is 240. Stoichiometry is the name given to the study of chemical processes in mathematics. Numerous calculations can be done, such as stoichiometry, which is most usually performed with moles but can also be done with masses and even percentages. Stoichiometric ratio A stoichiometric ratio is important when considering the interactions between specific elements or molecules. This exact ratio of reactant to product coefficients is necessary for a reaction to occur properly. Let's discuss some problems you can run across when you learn about stoichiometry. Chemical Equations in Balance Equations needing to be balanced is a fairly common stoichiometric issue type. This is an essential chemistry skill since a reaction can only occur if the ratio of reactants to products is correct.possess. Additionally, it provides an essential framework for organic chemistry. Balance the ensuing reply: _ CO2 + _ H2O C2H2 + _ O2 To be balanced, equations must have an equal number of each element on both sides of the reaction. Before balancing the oxygen, you can start by balancing the carbons and hydrogens. The equation must have the following form to be balanced: 4CO2 + 2H2O = 2C2H2 + 5O2

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Answer:

Hypothesis---experiments----results----conclusion.

Explanation:

First we make a hypothesis means a statement about why the tree looks unhealthy. In this segment of scientific method we have to test the hypothesis through experimentation. After that we have to take the readings of various parts of the tree and analyze the data to find out the problem. In the next step, we have to made the results on the basis of the data that is obtained. In the last we have to write the conclusion of the analysis and see the hypothesis.

Answer:

salad is a mixture this is the answer of the question

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Protons and neutrons are present inside the nucleus of an atom while electrons revolve around circular orbits.

What is Proton and Neutrons?

The atom is made up of the subatomic particles electron, proton, and neutron. The atom is made up of a core nucleus that has neutrons and protons in it. The nucleus is surrounded by electrons.

Neutrons are neutral, protons are positively charged, and electrons are negatively charged.

All atoms' nuclei include protons, which are subatomic particles with a positive charge. One proton has a positive charge. The quantity of protons in the element's nucleus determines its atomic number. Two up quarks and one down quark make up protons. The mass of it is 1.007277 amu (atomic mass units).

All atoms, with the exception of hydrogen, include neutrons, which are subatomic particles that are neutrally charged.

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Answer:

It can lose it's electrion

Explanation:

Based on the balanced equation, if we have 0.08 moles of Iron (Fe), we can conclude that 0.08 moles of Hydrogen (H₂) will be formed as well.

First we need to balance the chemical equation for the reaction involving Iron (Fe) and Hydrogen (H).

The reaction will be between Fe and HCl (hydrochloric acid) to produce hydrogen gas (H₂) and iron chloride (FeCl₂):

Fe + 2HCl → FeCl₂ + H₂

From the balanced equation, we can see that for every 1 mole of Fe reacted, 1 mole of H₂ is formed. Therefore, if we have 0.08 moles of Fe, we can conclude that 0.08 moles of H₂ will be formed as well.

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Answer:

Carbon is the only nonmetal element in the group

Explanation:

Carbon and silica are the non- metal which are placed in group 14.

Non-metals were elements on the periodic table's right side. Gases, liquids, and solids above are all examples of non-metals. Non-metals are not as lustrous as metals and have a drab color.

The carbon family belongs to Group 14. Carbon, silicon, germanium, tin, and lead are the five members. In their uppermost energy level, each of these elements possesses four electrons. Only carbon and silicon create nonmetal bonding among the Group 14 elements and form by sharing electrons .

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(a) The speed of light in the unknown substance is determined 1.82 x 10⁸ m/s.

(b) The light will bend away from the normal since speed of light in air is not equal to speed of light in the substance.

The speed of light passing from air into the substance is calculated as follows;

refractive index = speed of light in air / speed of light in the substance

speed of light in the substance = speed of light in air/refractive index

speed of light in the substance = (3 x 10⁸) / (1.65)

speed of light in the substance = 1.82 x 10⁸ m/s

Thus, the light will bend away from the normal since speed of light in air is not equal to speed of light in the substance.

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Answer:

1.33%

Explanation:

In an aqueous solution, a weak acid such as acetic acid, will be in equilibrium with its conjugate base, acetate ion, thus:

CH₃CO₂H(aq) + H₂O(l) ⇌ H₃O⁺(aq) + CH₃CO₂⁻(aq )

Where dissociation constant, ka, is defined as the ratio of concentrations of products and reactants:

Ka = 1.8x10⁻⁵ = [H₃O⁺] [CH₃CO₂⁻] / [CH₃CO₂H]

H₂O is not taken into account in the equilibrium because is a pure liquid

When a solution of acetic acid becomes to equilibrium, the original concentration of the acid decreases producing more H₃O⁺ and CH₃CO₂⁻.

The concentrations at equilibrium when a 0.100M solution of acetic acid reaches this state, is:

[CH₃CO₂H] = 0.100M - X

[H₃O⁺] = X

[CH₃CO₂⁻] = X

Where X is reaction coordinate.

Replacing in Ka expression:

1.8x10⁻⁵ = [H₃O⁺] [CH₃CO₂⁻] / [CH₃CO₂H]

1.8x10⁻⁵ = [X] [X] / [0.100M - X]

1.8x10⁻⁶ - 1.8x10⁻⁵X = X²

1.8x10⁻⁶ - 1.8x10⁻⁵X - X² = 0

Solving for X:

X = -0.00135 → False solution. There is no negative concentrations.

X = 0.00133 → Right solution.

That means concentration of acetate ion is:

[CH₃CO₂⁻] = 0.00133M.

Now, percent ionization is defined as 100 times the ratio between weak acid that is ionizated, [CH₃CO₂⁻] = 0.00133M, per initial concentration of the acid, [CH₃CO₂H] = 0.100M. Replacing:

% Ionization = 0.00133M / 0.100M × 100 =

Answer:

100%

Explanation:

After distributing the alleles, the genotype Rr will be left in all 4 boxes of the Punnet Square.

Answer:

oxygen has the highest atomic mass.

Answer:

C Oxygen

Explanation:

The answer would be C since the protons and the neutrons are somewhat the same number / similar. As well as the periodic table would have somewhere in the elements "box".

The reaction rate between solutions O won't be impacted by bleach (optio c). Practically speaking, a fairly specific per-iod marks the start of the reactants' phase of the "chemical reaction."

Rubber alcohol, salt water, and sugar dissolved in water are a few examples of solutions. When mixing salt and water, the salt particles become so small that they are no longer visible with the nak-ed eye, indicating that the mixture is homogenous.

A continuous variation in the relative proportions of two or more substances that is homogeneous and can be changed up to the solubility limit. Although the word "solution" is typically used to describe the liquid state of matter, it is also possible for gases and solids to form solutions.

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Answer:

1.03 × 10¹

Explanation:

The decimal point is after the first non-zero digit number. The decimal or the number is multiplied by a 10 with an exponent.

Answer:

101325 pascal

Explanation:

i dont cap

Answer:

See below

Explanation:

1 atmosphere = 101 325 Pascals = 760 mm Hg = 14.6959 psi

Answer:

a. The chemical symbols represent the chemical element and are 1 to 2 letters long.

Example: Er- Erbium

b. The chemical formulas identify each element by it's chemical symbol and indicates the proportionate number of atoms in each element.

Example: Salt- NaCI

c. A chemical equation is the symbolic equation of a chemical reaction in the form of symbols and formulas.

Example: H2+O=H2O (One water molecule)

There are 9.06x10^22atoms in 3.02 × 10^22 molecules of NH₃

From the given information:

We were being told that there are 3.02 x 10 ²² molecles of NH₃

We also known that ammonia NH₃ has  1 atom of Nitrogen and 3 atoms of hydrogen

Therefore, in 3.02 × 10^22 molecules of NH₃,there will be

3.02 × 10^22 molecules  x 3 atoms of hydrogen = 9.06x10^22atoms of Hydrogen.

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Answer:

Solids do not undergo diffusion because it has a fixed structure (vibrates in a fixed position) and it also cannot be compressed.

Hoped this helped in any way

Have a nice day

Answer:

isopropyl alcohol

Explanation:

HOPE IT HELPS YOU

Latin was the language of learning at medieval and renaissance universities.

After about the 6th century, Latin ceased to be the mother tongue of peoples and nations. Nevertheless, knowledge and use of Latin persisted, partly because most of the Germanic peoples who settled in areas that were once part of the Western Roman Empire lacked a written culture. Therefore, Latin continued to be used for official documents. Of course, Latin was also the language of the Roman Church and its administration.

Latin maintained its role as the primary language for communicating the liberal arts and sciences from the Middle Ages through the Renaissance. Latin was the language of instruction and discussion in the schools and colleges established in the Middle Ages.

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The balanced chemical equation is:

0.5C7H16 + O2 → 0.5CO2 + H2O

For balancing the chemical equation C7H16 + O2 → CO2 + H2O, we can use linear algebraic techniques. We need to determine the coefficients that balance the number of atoms on both sides of the equation.

Let's denote the coefficients for C7H16, O2, CO2, and H2O as a, b, c, and d, respectively.

The balanced chemical equation can be written as:

aC7H16 + bO2 → cCO2 + dH2O

To balance the carbon (C) atoms, we have:

7a = c (Equation 1)

To balance the hydrogen (H) atoms, we have:

16a = 2d (Equation 2)

To balance the oxygen (O) atoms, we have:

2b = 2c + d (Equation 3)

We have three equations (Equations 1, 2, and 3) and four unknowns (a, b, c, d). To solve this system of equations, we can write it in matrix form and find the solution using linear algebraic techniques.

The augmented matrix for the system of equations is:

[ 7 0 -1 0 | 0 ]

[ 0 0 0 -2 | 0 ]

[ 0 -2 2 -1 | 0 ]

By performing row operations to row-reduce the augmented matrix, we can obtain the solution:

[ 1 0 -0.5 0 ]

[ 0 1 -1 -0.5 ]

[ 0 0 0 0 ]

The solution to the system of equations is:

a = 0.5

b = 1

c = 0.5

d = 1

Putting the values of a,b,c, and d we get the balanced chemical equation as:

0.5C7H16 + O2 → 0.5CO2 + H2O

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Answer:

+2

Explanation:

Oxidation number of an element, also called its oxidation state, is the number of electrons its atoms lost or gain in the process of forming a chemical compound.

To determine the oxidation state of an element or compound;

- The sum of all the oxidation numbers in a neutral compound must equal zero (0).

In the compound: Fe2(CO3)2

This compound is a neutral one, hence, its oxidation state is equal to zero (0).

It contains a polyatomic ion (carbonate ion) i.e. CO3 2-, whose net charge is -2.

Hence, to find the oxidation number of Iron (Fe), which is represented by X, in the compound, we say;

X(2) + -2(2) = 0

2X + -4 = 0

2X - 4 = 0

2X = 4

X = +2

Therefore, the oxidation number of Fe in Fe2(CO3)2 is (+2)

The compound Fe2(CO3)2 is called Iron (II) carbonate

Oxidation number of Fe in \(\rm Fe_2(CO_3)_2\) is 2. An atom's oxidation number is a positive or negative number.

A notion used in chemistry to characterise the relative electron distribution and the level of oxidation or reduction of atoms in a compound or ion is known as the "oxidation number," sometimes known as the "oxidation state." Based on the presumption that electrons in chemical bonds are entirely transmitted to the more electronegative atom, it is a method of bookkeeping that assigns a notional charge to each individual atom in a molecule or ion.

The -4 stands for the overall charge that the carbonate ions provided, and the x is the Fe's oxidation number.

2x + (-4) = 0

2x - 4 = 0

2x = 4

x = 4/2

x = 2

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Answer:

Your answer would be "Polyatomic anions."

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Answer:

The order and arrangement of the planets and other bodies in our solar system is due to the way the solar system formed. Nearest the Sun, only rocky material could withstand the heat when the solar system was young. For this reason, the first four planets—Mercury, Venus, Earth and Mars—are terrestrial planets.

Explanation:

Answer:

wow never heard the question

The chocolate chips that are in one mole of chocolate chips is 6.02214 × 10²³ chips.

The mole of a substance is defined as the amount of substance that is my are up of 6.02214 × 10²³ particles and this number is called the Avogadro's number.

This means that 1 mole of substance= 6.02214 × 10²³ of particles that makes up the substance.

The Avogadro's number is a constant used for all substances such as the chocolate chips.

That is to say, one mole of the chocolate chips has a mass of 0.324 g but contains 6.02214 × 10²³ particles of chocolate chips.

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The number of chocolate chips that are included inside one mole of chocolate chips is equal to 6.02214 ×10^23 chips.

The quantity of a material that may be made up of 6.02214 ×10^23 particles is referred to as a mole, and this number is known as Avogadro's number. The mole is the unit of measure used to describe this quantity.

This indicates that there are 6,02214×10^23 particles in one mole of the material, which implies that one mole of the substance is equal to one mole.

Avogadro's number is a constant that is applied to many different kinds of things, including chocolate chips.

In other words, one mole of chocolate chips has a mass of 0.324 g, yet it includes 6.02214 ×10^23 individual chocolate chip particles.

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Answer:

yes

Explanation:

were is it

The electron configuration of Ca⁺² is most similar to that of Ar(Argon)

In an atom, there are levels of energy in the shell and sub-shell  

This energy level is expressed in the form of electron configurations.  

Writing electron configurations starts from the lowest to the highest sub-shell energy level. There are 4 sub-shells in the shell of an atom, namely s, p, d, and f. The maximum number of electrons for each sub-shell is  

Charging electrons in the sub-shell uses the following sequence:  

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.  

Calcium (symbol Ca) is an alkaline earth metal element with an atomic number of 20, so the number of electrons is 20 (for neutral atoms)

The electron configuration of Ca :  [Ar] 4s² ⇒ 1s² 2s² 2p⁶ 3s²3p⁶4s²

For the Ca²⁺ cation, which has a +2 charge, it is obtained by removing 2 electrons, so that the electron configuration is the same as for the element Ar (argon): 1s² 2s² 2p⁶ 3s²3p⁶

Answer:

Endothermic.

Explanation:

Because the temperature decreased, the reaction is endothermic.

Endothermic reactions absorb heat from the surroundings. In this case, the dissolution of the ammonium nitrate absorbed heat from the surroundings (the water). Hence, the temperature of the solution decreased.