Naming inconic compounds and lots of iconic naming

Answer:

CaHPO4 i think

Explanation:

The resulting temperature : 546.91 K = 273.91 °C

Boyle's law and Gay Lussac's law  

[tex]\tt \dfrac{P_1.V_1}{T_1}=\dfrac{P_2.V_2}{T_2}[/tex]

P1 = initial gas pressure (N/m² or Pa)  

V1 = initial gas volume (m³)  

P2 = final gas pressure  

V2 = the final volume of gas  

T1 = initial gas temperature (K)  

T2 = final gas temperature  

P₁=10 atm

V₁=2.36 L

T₁=25+273=298 K

P₂=5.56 atm

V₂=7.79 L

[tex]\tt T_2=\dfrac{P_2.V_2.T_1}{P_1.V_1}\\\\T_2=\dfrac{5.56.\times 7.79\times 298}{10\times 2.36}\\\\T_2=546.91~K=273.91^oC[/tex]

Answer:

nomenclature of alkanes

Explination:

Substituent Formula Number of C Atoms Name of Substituent

CH3                                   1                                         methyl–

CH3CH2                                  2                              ethyl–

CH3CH2CH2                           3                    propyl–

CH3CH2CH2CH2                       4               butyl–

CH3CH2CH2CH2CH2                     5                  pentyl–

and so forth                      and so forth     and so forth

Try this it helped me allot,

Alkenes and alkynes are named in a similar fashion. The biggest difference is that when identifying the longest carbon chain, it must contain the C–C double or triple bond. Furthermore, when numbering the main chain, the double or triple bond gets the lowest possible number. This means that there may be longer or higher-numbered substituents than would be allowed if the molecule were an alkane. For example, this molecule is 2,4-dimethylhept-3-ene (note the number and the hyphens that indicate the position of the double bond).

2,4-dimethylhept-3-ene

or two one carbonsubstituents on the second and third C atoms

its not 3-methylheptane.

Answer:

The best and most correct answer among the choices provided by your question is the fourth choice.

The data explains that sodium atoms hardly ever form 2+ ions.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Explanation:

Answer:

HNO₃ + H₃AsO₃(aq) → NO(g) + H₃AsO₄(aq) + H₂O(l)

Identify the oxidation number of every atom.

Left hand side: H= +1; N= +5; O = -2; As = +3

Right hand side: N = +2; O = -2; H = +1; As = +5

Determine the change in oxidation number for each atom that changes.

N: +5 → +2; Change = -3

As: +3 → +5; Change = +2

Make the total increase in oxidation number equal to the total decrease in oxidation number.

We need 2 atoms of N for every 3 atoms of As. This gives us total changes of -6 and +6.

Place these numbers as coefficients in front of the formulas containing those atoms.

2HNO₃ + 3H₃AsO₃(aq) → 2NO(g) + 3H₃AsO₄(aq) + H₂O(l)

Balance all remaining atoms other than H and O.

Done.

Balance O.

Done.

Balance H.

Done.

Explanation:

Molecules of SO₃  : 4.214 x 10²³

The reaction equation is the chemical formula of reagents and product substances  

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products  

Reaction(balanced)

2SO₂(g) + O₂(g) → 2SO₃(g)

mol SO₃ :

[tex]\tt mol~SO_3=\dfrac{2}{1}\times mol~O_2[/tex]

[tex]\tt 2\times 0.35=0.7[/tex]

number of molecules :

1 mol = 6.02 x 10²³ particles(atoms, molecules,ions)

[tex]\tt 0.7\times 6.02\times 10^{23}=4.214\times 10^{23}[/tex]

The number of molecules of SO₃ that could be formed is 4.2 × 10²³ molecules

From the question,

We are to determine the number of molecules of SO₃ that could be formed.

The given chemical equation for the reaction is

SO₂(g) + O₂(g) → SO₃(g)

First, we will balance the chemical equation

The balanced chemical equation for the reaction is

2SO₂(g) + O₂(g) → 2SO₃(g)

This means

2 moles of SO₂ reacts with 1 mole of O₂ to produce 2 moles of SO₃

From the given information

Number of moles of O₂ present = 0.35 moles

Since,

2 moles of SO₂ reacts with 1 mole of O₂ to produce 2 moles of SO₃

Then,

2×0.35 mole of SO₂ will react with the 0.35 mole of O₂ to produce 2×0.35 mole of SO₃

That is,

0.70 mole of SO₂ will react with the 0.35 mole of O₂ to produce 0.70 mole of SO₃

∴ 0.70 mole of SO₃ could be produced

Now, for the number of molecules of SO₃ that could be produced,

Using the formula

Number of molecules = Number of moles × Avogadro's constant

∴ Number of molecules of SO₃ that could be formed = 0.70 × 6.022 × 10²³

Number of molecules of SO₃ that could be formed = 4.2154 × 10²³  

Number of molecules of SO₃ that could be formed ≅ 4.2 × 10²³ molecules

Hence, the number of molecules of SO₃ that could be formed is 4.2 × 10²³ molecules

Learn more here: https://brainly.com/question/12823498

Answer:

Expose the paper to the atmosphere or moisture

Explanation:

An interesting experiment that demonstrates the equilibrium of complexes is that of the invisible ink.

The invisible ink is pink colored [Co(H2O)6]Cl2 which is essentially colorless and pale when it is used to write on paper. This complex is almost colorless when dilute. Therefore, when it is used in writing, the writing can not be seen.

However, if the paper is left to stand or allowed to absorb moisture; the following equilibrium is set up:

[Co(H2O)6]Cl2 ⇄ [CoCl2(H2O)2] + 4H2O

The formation of blue [CoCl2(H2O)2] on standing or exposure to moisture enables the colored writing to be easily read.

Answer:

Energy cannot be converted from one form to another.

Answer:

false

Explanation:

Fossils fuels are actually polluting the atmosphere therefore, it can not be a clean-burning fuel.

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\ [/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{4.98 \times {10}^{28} }{6.02 \times {10}^{23} } \\ = 82724.2524...[/tex]

We have the final answer as

Hope this helps you

Answer:D

Explanation:

A P E X

Answer: Atoms are the smallest particles of an element.

The heat of reaction : 50.6 kJ

Based on the principle of Hess's Law, the change in enthalpy of a reaction will be the same even though it is through several stages or ways

Reaction

N₂(g) + 2H₂(g) ⇒N₂H₄(l)

thermochemical data:

1. N₂H₄(l)+O₂(g)⇒N₂(g)+2H₂O(l)   ΔH=-622.2 kJ

2. H₂(g)+1/2O₂(g)⇒H₂O(l)  ΔH=-285.8 kJ

We arrange the position of the elements / compounds so that they correspond to the main reaction, and the enthalpy sign will also change

1. N₂(g)+H₂O(l) ⇒  N₂H₄(l)+O₂(g) ΔH=+622.2 kJ

2. H₂(g)+1/2O₂(g)⇒H₂O(l)  ΔH=-285.8 kJ x 2 ⇒

2H₂(g)+O₂(g)⇒2H₂O(l)  ΔH=-571.6 kJ

Add reaction 1 and reaction 2, and remove the same compound from different sides

1. N₂(g)+2H₂O(l) ⇒  N₂H₄(l)+O₂(g) ΔH=+622.2 kJ

2.2H₂(g)+O₂(g)⇒2H₂O(l)            ΔH=-571.6 kJ

-------------------------------------------------------------------- +

N₂(g) + 2H₂(g) ⇒N₂H₄(l)   ΔH=50.6 kJ

Answer : A

Explanation

B- conduction

c - convection

D heat transfer

Answer:

d

Explanation:

Answer:

5.52 nac

Explanation:

Answer:

its 10

Explanation:

i took the test

Answer:

2H⁺(aq) + 2OH⁻(aq)  --> 2H2O(l)

Explanation:

2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq)

We break the compounds into ions. Only compounds in the aqueous form can be turned into ions.

The ionic equation is given as;

2H⁺(aq)  +  2Br⁻(aq)  + Ba²⁺(aq) + 2OH⁻(aq)   --> 2H2O(l)  +  Ba²⁺(aq)  + 2Br⁻(aq)

Upon eliminating the spectator ions; The net equation is given as;

2H⁺(aq) + 2OH⁻(aq)  --> 2H2O(l)

Answer:

[tex]\Delta _fH_{NH_3}=-66\frac{kJ}{mol}[/tex]

Explanation:

Hello!

In this case, since the study of the bond energy allows us to compute the enthalpies of some reactions, for this combination reaction by which ammonia is yielded, we understand the enthalpy of reaction equals the enthalpy of formation of ammonia, and, in terms of the bonds energy we can write:

[tex]\Delta _fH_{NH_3}=Delta _rH=\Sigma \Delta H(bonds \ broken)-\Sigma \Delta H(bonds \ formed)[/tex]

Whereas the bonds enthalpy of those bonds that get broken cover the N≡N and the three H-H bonds at the reactants side and the enthalpy of those bonds that are formed cover the six N-H bonds at the products; which means we obtain:

[tex]\Delta _fH_{NH_3}=942\frac{kJ}{mol} +3*436\frac{kJ}{mol}-6*386\frac{kJ}{mol}\\\\\Delta _fH_{NH_3}=-66\frac{kJ}{mol}[/tex]

Which differs from the theoretical value that is -46 kJ/mol.

Best regards!

Answer:

48.0g is the specific gravity of liquid sample with a mass of 35.0g and a volume of 14.00 mL

Answer:

Opaque Material

Answer:

A ground glass is translucent as it allows only partial light to pass through it and forms light shadows

Answer:

I thin its B im not sure though

Explanation:

The puppies from the same set of parents have different color noses because the pink-nosed puppy and the black nosed puppy inherited different combinations of the genes for nose color from their parents. Thus, the correct option is B.

A gene is the unit of inheritance which is made up of DNA (deoxyribonucleic acid). Every person receives two copies or alleles of each gene which is inherited from each of the two parent.

Genes are made up of DNA, so each of the chromosome contains many different genes. Genes carry the information which determines the traits or characteristics that are passed on to their offspring or inherited from the parents.

The puppies from the same set of parents have different colored noses because pink-nosed puppy and the black nosed puppy inherited different combinations of the genes for nose color from their parents.

Therefore, the correct option is B.

Learn more about Inheritance here:

https://brainly.com/question/14930526

#SPJ2

Answer:

Temperature and Heat

Explanation:

Proportional to the average kinetic energy of the molecules in a substance.

Answer:

Chemical properties

Atomic number. The atomic number indicates the number of protons within the core of an atom.

Atomic mass. The name indicates the mass of an atom, expressed in atomic mass units (AMU).

Electronegativity according to Pauling.

Density.

Melting point.

Boiling point.

Vanderwaal's radius.

Ionic radius.

And many more.

Explanation:

Answer:

Atomic number. The atomic number indicates the number of protons within the core of an atom. ...

. Atomic mass. The name indicates the mass of an atom, expressed in atomic mass units (amu). ...

. Electronegativity according to Pauling. ...

. Density. ...

. Melting point. ...

. Boiling point. ...

. Vanderwaals radius. ...

. Ionic radius.

C : 52.2%, H : 13.1%, O:34.7%

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

(empirical formula) n = molecular formula  

11.5 g of Ethanol-C₂H₅OH contains 6.00 g of Carbon and 1.51 g of Hydrogen.

mass of Oxygen :

[tex]\tt 11.5-(6+1.51)=4~g[/tex]

Percent composition :

[tex]\tt \dfrac{6}{11.5}\times 100\%=52.2\%[/tex]

[tex]\tt \dfrac{1.51}{11.5}\times 100\%=13.1\%[/tex]

[tex]\tt \dfrac{4}{11.5}\times 100\5=34.7\%[/tex]

Answer:

Physical Change. Physical changes are changes in which no bonds are broken or formed. This means that the same types of compounds or elements that were there at the beginning of the change are there at the end of the change.

Answer:

411.6 g

Explanation:

The equation for the decomposition of potassium chlorate to produce oxygen is given as;

2KClO3 --> 2KCl + 3O2

From the stochiometry of the reaction 2 mole of KClO3 produces 3 mol of O2

At STP,

1 mol = 22.4L

3 mol = x

x = 67.2L

2 mole of KClO3 produces 67.2L of O2

How many moles would produce 113L?

2 = 67.2

x = 113

x = 3.36 moles

Moles can be converted to mass using;

Mass = moles * Molar mass

Mass = 3,36 * 122.5 g/mol

Mass = 411.6 g

Answer:

F = 150 N

Explanation:

Given data:

Mass of bicycle = 15 kg

Acceleration = 10 m/s²

Force needed = ?

Solution:

Formula:

F = ma

F = force

m = mass

a = acceleration

now we will put the values in formula.

F = 15 Kg × 10 m/s²

F = 150 Kg.m/s²

      Kg.m/s² = N

F = 150 N

Answer:

167 mL.

Explanation:

We'll begin by calculating the number of moles in 45 g of aluminum (Al). This can be obtained as follow:

Mass of Al = 45 g

Molar mass of Al = 27 g/mol

Mole of Al =?

Mole = mass /Molar mass

Mole of Al = 45/27

Mole of Al = 1.67 moles

Next, the balanced equation for the reaction. This is given below:

2Al + 3H2SO4 → Al2(SO4)3 + 3H2

From the balanced equation above,

2 moles of Al reacted with 3 moles of H2SO4.

Next, we shall determine the number of mole of H2SO4 needed to react with 45 g (i.e 1.67 moles) of Al. This can be obtained as:

From the balanced equation above,

2 moles of Al reacted with 3 moles of H2SO4.

Therefore, 1.67 moles of Al will react with = (1.67 × 3)/2 = 2.505 moles of H2SO4.

Thus 2.505 moles of H2SO4 is needed for the reaction.

Next, we shall determine the volume of H2SO4 needed for the reaction. This can be obtained as follow:

Molarity of H2SO4 = 15.0 M

Mole of H2SO4 = 2.505 moles

Volume =?

Molarity = mole /Volume

15 = 2.505 / volume

Cross multiply

15 × volume = 2.505

Divide both side by 15

Volume = 2.505/15

Volume = 0.167 L

Finally, we shall convert 0.167 L to mL. This can be obtained as follow:

1 L = 1000 mL

Therefore,

0.167 L = 0.167 L × 1000 mL / 1 L

0.167 L = 167 mL

Thus, 0.167 L is equivalent to 167 mL.

Therefore, 167 mL H2SO4 is needed for the reaction.

Answer:

I ordered the tiles from left to right and top to bottom as the numbers kept increasing. The tiles were also organized based on the color and shape that they were. The tiles with the same color and shape were arranged in the same column.

Explanation:

In the modern periodic table, the elements are listed in order of increasing atomic number and elements having similar chemical properties naturally line up in the same column (group).

Answer:

V₂ = 918.1 cm³

Explanation:

Given data:

Initial volume = 640 cm³

Initial temperature = 100°C (100+273 = 373 K)

Initial pressure = 1490 mmHg (1490 /760 = 1.96 atm)

Final volume = ?

Final temperature = 273 K

Final pressure = 1 atm

Solution:

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

now we will put the values in formula.

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 1.96 atm × 640 cm³ × 273 K / 373 K × 1 atm

V₂ = 342451.2 atm .cm³ . K / 373 K. atm

V₂ = 918.1 cm³