an artwork that shows the colors, forms, and textures of a real object


the quality of an artwork in which the elements are visually equal


the rules artists use for arranging the elements of art in artworks; they include proportion, pattern, movement, contrast, emphasis, balance, variety, and unity


having an identifiable object, but without details and with visual elements rearranged or simplified


the basic parts or things that make up works of art, including line, shape, color, value, form, texture, and space

1.
balance

2.
abstract

3.
principals of design

4.
elements of art

5.
realistic

Provided all set of given quantum numbers are allowed.

(a) n = 3, ℓ = 3, mℓ = 0, ms = -½

For n = 3, ℓ = 3 is not possible

ms can never be a negative value

mℓ cannot equal -1

All of these quantum numbers are allowed

(b) n = 4, ℓ = 3, mℓ = 2, ms = -½

When n = 4, ℓ = 3 is not possible

ms can never be a negative value

mℓ cannot equal 2 when ℓ = 3

All of these quantum numbers are allowed

(c) n = 4, ℓ = 1, mℓ = 1, ms = +½

When ℓ = 1, mℓ = 1 is not possible

ms can not be positive

mℓ cannot equal 1 when n = 4

All of these quantum numbers are allowed

(d) n = 2, ℓ = 1, mℓ = -1, ms = -1

When n = 2, ℓ = 1 is not possible

ms can never be a negative value

ms cannot equal -1

All of these quantum numbers are allowed

(e) n = 5, ℓ = -4, mℓ = 2, ms = +½

mℓ cannot equal 2

ℓ cannot be a negative number

n has a maximum of four

All of these quantum numbers are allowed

(f) n = 3, ℓ = 1, mℓ = 2, ms = -½

When ℓ = 1, mℓ = 2 is not possible

ms can never be a negative value

ℓ cannot be 1 when n = 3

All of these quantum numbers are allowed

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The Volume of the gas will decrease when a sample of gas from a hot area to a cooler area assuming that there is no change in pressure and that no gas is lost in the process.

The equation of an ideal gas is mentioned below;

PV = nRT

Let us assume that there is no change in pressure and that no gas is lost in the process of gas transfer. So, we can write

Pressure = P = Constant

Number of moles = n = Constant

R = Gas Constant

So, we can write the relation between the temperature and volume of gas as

T ∝ V

We are transferring a sample of gas from a hot area to a cooler area i.e., Temperature is decreasing. So, the Volume of the gas will also decrease.

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The molecular, ionic, and net ionic equations of the reaction between potassium phosphate and copper (II) acetate are given below.

The physical states of the substances are depicted in the balanced chemical equation known as a molecular equation, which we may determine using the solubility principles.

When formulae for compounds are expressed as though they were all molecules, the equation is referred to as a molecular equation.

When dissolved ionic chemicals are represented as free ions, the equation is said to be an ionic equation.

A chemical equation known as an ionic equation expresses the electrolytes in aqueous solution as dissociated ions.

A chemical equation known as the net ionic equation shows how ions or molecules change throughout a process.

Net ionic equations lack the common ions that exist on both sides of the ionic equation and are known as spectator ions. In a reaction, ions that do not change at all are known as spectator ions.

Molecular equation:

[tex]2K_3PO_4 (aq) + 3Cu(CH_3COO)_2 (aq) \rightarrow 6K(CH_3COO) (aq) + Cu_3(PO_4)_2 (s)[/tex]

Ionic equation:

[tex]6K^+ (aq) + 2PO_4^{3-} (aq) + 3Cu^{2+} (aq) + 6CH_3COO^- (aq) \rightarrow 6K^+ (aq) + 6CH_3COO^- (aq) + Cu_3(PO_4)_2 (s)[/tex]

Net Ionic equation:

[tex]3Cu^{2+} (aq) + 2PO_4^{3-} (aq) \rightarrow Cu_3(PO_4)_2 (s)[/tex]

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Hint: Tetrafluoromethane, otherwise called carbon tetrafluoride or R−14

, is the most straightforward perfluorocarbon (CF4

). As its IUPAC name shows, tetrafluoromethane is the per fluorinated partner to the hydrocarbon methane. It can likewise be named a haloalkane or halomethane.

Complete step by step answer:

On the off chance that you take a gander at the condition, you will see that for each one mole of C

that is responded, one mole of CF4

is delivered. Thus, 1.46

moles of CF4

are created (expecting that there is sufficient F2

). A mole of CF4

has a mass of around 88

grams, so 1.46

moles is equivalent to 128.48

grams. Adjusted to critical figures, your answer will be 128

grams.

Let’s do it bit by bit:

First Change moles of carbon to moles of CF4

n(CF4)=1.46 mol C × (1 mol CF41 mol C) = 1.46 mol CF4

At that point convert moles of CF4

to grams of CF4

utilizing the molar mass

M(CF4)=(1×12+4×19)gmol−1=88gmol−1

m(CF4)=nM=1.46mol×88gmol−1=128g

So, the required answer is [128g]

Diffusion Coefficient at 600°C

D₁= 5.5*10⁻¹⁴ m²/s

Diffusion Coefficient at 700°C

D₂= 3.9*10⁻¹³ m²/s

D₁= D₀. exp(- Qd/ R.T₁)

D₂= D₀. exp (-Qd/ R.T₂)

We can solve first equation for D₀

D₀= D₁/ exp ( -Qd/ R.T₁)

Put D₀ in equation 2

D₂= D₁. Exp ( Qd/R. (1/T₁ - 1/T₂)

On rearranging the equation we can solve it for Qd:

Qd = R. ㏑( D₂/D₁) (T₁.T₂/ T₂-T₁)

     = 8.314. ㏑( 3.9*10⁻¹³/ 5.5*10⁻¹⁴).( 873*973/100)

    Qd  = 138.3 KJ/mol

Now D₀= D₁/ exp ( -Qd/RT₁)

= 5.5*10⁻¹⁴/ exp (138300/8.314*873)

D₀= 1.04* 10⁻¹⁵ m²/s

For T= 830°C

D= 1.04* 10⁻⁵. exp ( 138300/8.314*1103)

D =  1.04* 10⁻⁵. exp ( 138300/9170.34) m²/s

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Answer:

incomplete question need more information

The specific gravity of a modified ringer's irrigation is 1.06g/ml

We start by calculating total mass of ingredients:

Total mass of ingredients=4.6+0.2+0.43+25+500

                                          =530.23g

Volume of water=500ml

We now get the density of the solution:

Density=Mass of ingredients/volume of water

           =530.23/500

           =1.06g/ml

Calculate the specific gravity:

Specific gravity=Density of substance/Density of water

( Density of water=1g/ml)

Specific gravity=1.06/1

                         =1.06g/ml

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Amanda’s ball is heavier so it’s harder throw. This was illustrated in the bowling.

Amanda was having such a difficult time because she chose a heavier ball.

Evidence: Jason had no trouble with his 6lb ball, while Amanda struggled with double the weight of Jason's ball, which was 12lb and had more mass.

Reasoning: Jason chose a ball with less mass weighting at 6 pounds, but his ball was more simpler to roll as a result. This was owing to Newton's second law, as having a lighter ball made it easier for him to pass through. Amanda, on the other hand, had a ball that was so heavy that it was difficult to throw.

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The name of the product on reducing 1-

hydroxy-2-hexanone with sodium borohydride is 1,2 - Dihydroxyhexane

Reduction of carbonyl compounds:

Carbonyl compounds undergo reduction using suitable reducing agent forming alcohols. A number of reducing agents serve this purpose. Some common reducing agents used are:

What is Sodium borohydride?

We can see that, since the second Carbon on product side has only one hydrogen along with OH group,  thus it is a secondary alcohol.

Primary alcohols have 2 hydrogen with the carbon along with hydroxyl group, while tertiary alcohols have no hydrogen on the carbon with hydroxyl group.

Thus we can conclude that the name of the product on reducing 1-hydroxy-2-hexanone with sodium borohydride is 1,2 - Dihydroxyhexane

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The given sample of gas if found to have a molar mass of 89.686g/mol.

For bulk quantities, the molar mass makes it possible to convert between a substance's mass and its quantity. It is determined as the total of all of the substance's atoms' standard atomic weights.

PV = nRT, where P is pressure (in atm), V is volume (in L), n is the No. of moles of gas, universal gas constant is denoted by R (0.082 Latm/molK), and T is temperature (in K), is the formula used to calculate the molar mass of a gas.

Given:

Mass of gas = 1g

P = 1atm

V = 250mL

T = 273K

To find:

Molar mass of Gas = ?

Formula:

PV = nRT

Calculations:

n = 1 x 0.25 / 0.082 x 273

n = 0.01115 mol

Mass of gas = No. of moles x molar mass

Molar mass = 1 / 0.01115

Molar mass = 89.686g/mol

Result:

The gas is found to have 89.686g/mol molar mass.

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Answer:

1.381 moles Fe

Explanation:

To find moles of Fe, you need to (1) convert grams Fe(NH₄)₂(SO₄)₂ to moles (using the molar mass) and then (2) convert moles Fe(NH₄)₂(SO₄)₂ to moles Fe (using the mole-to-mole ratio within the molecule). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 4 sig figs like the given value (392.2 = 4 sig figs).

Atomic Mass (Fe): 55.845 g/mol

Atomic Mass (N): 14.007 g/mol

Atomic Mass (H): 1.008 g/mol

Atomic Mass (S): 32.065 g/mol

Atomic Mass (O): 15.999 g/mol

Molar Mass (Fe(NH₄)₂(SO₄)₂):

55.845 g/mol + 2(14.007 g/mol) + 8(1.008 g/mol) + 2(32.065 g/mol) + 8(15.999 g/mol) = 284.045 g/mol

1 mole Fe(NH₄)₂(SO₄)₂ = 1 mole Fe, 2 moles N, 8 moles H, 2 moles S, 8 moles O

392.2 g Fe(NH₄)₂(SO₄)₂             1 mole                         1 mole Fe
-----------------------------------  x  -------------------  x  ----------------------------------  =
                                                284.045 g          1 mole Fe(NH₄)₂(SO₄)₂

=  1.381 moles Fe

36.2L of N2 can be produced.

1st) According to the stoichiometry of the reaction, 2 moles of NaN3 produce 3 moles of N2. Using the molar mass of NaN3 (65.0g/mol ) and N2 (28.0g/mol) we can convert the moles to mass, and we can see that with 130.0g of NaN3 we can produce 84.0g of N2.

Now, we can use a mathematical rule of three to calculate the grams of N2 that can be produced from 71.0g of NaN3:

So, 45.9g of N2 are produced from 71.0g of NaN3.

2nd) It is necessary to convert the grams of N2 produced to moles, so we can use it in the Ideal gas equation:

Now we know that 1.6mol of N2 are produced.

3rd) To calculate the volume of N2, it is necessary to use the Ideal gas equation and replace the values of Pressure (P), Temperature (T, in Kelvin) and Number of moles (n):

Finally, 36.2L of N2 can be produced from 71.0g of NaN3.

Charge on neutron, proton and electron is 0,1,-1 respectively, proton and neutrons are in nucleus while electron are in orbitals, the mass of electron is nearly 0 while mass of proton and neutron is 1 amu and only proton and neutrons are made up of quarks.

Electron, neutron and proton, all three are sub-atomic particles.

The charge on Neutron is 0.

The charge on Electron is -1.

The charge on Proton is +1.

Protons and neutrons are found inside the nucleus because they only are forming the nucleus, this is why they are also called Nucleons.

The electrons are found in the orbitals.

Approximate mass of Proton and Neutron is 1 amu. But the electron is very very light as compared to electron. So, we can assume it to be zero.

Protons and Neutrons are made up of Quarks but electron is not made up of quark.

Electron and Quarks are the fundamental particle in an atom.

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Group 2 of the periodic table places calcium, or Ca, which has two electrons on its outermost shell. Calcium must lose these two outermost electrons, also known as valence electrons, in order to have a full octet. Ionic compounds will be created when calcium reacts with nonmetals.

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The wavelength in the nanometer is  9.70 E-22.

Wavelength is the distance among equal points (adjacent crests) inside the adjacent cycles of a waveform sign propagated in space or alongside a wire.

The wavelength is the distance between two wave crests, and it is going to be the same for troughs. The frequency is the number of vibrations that pass over a given spot in a single 2d, and it's far measured in cycles according to 2d Hz.

The wavelength of light determines its shade, and the wavelength of sound determines the pitch. The wavelengths of seen light amplify from approximately seven-hundred nm (purple) to 400 nm (violet). The wavelength of audible sound range from approximately 17 mm to 17 m.

E = hc/λ

wavelength (λ) = hc/E

                        = 6.626 × 10⁻³⁴ × 3 × 10⁸ / 2.05 × 10³ × 1000

                       = 9.696 × 10⁻³² meter

                       =  9.696 × 10⁻³² × 10⁹ nm

                      =  9.696 × 10⁻²² nm

                       = 9.70 E-22

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The statements that correctly explains the use of physical properties of a substance to separate mixtures are

Statement 1: When substances are mixed together, they retain their physical properties.

Statement 3: When substances are mixed together, the mixture assumes the physical properties of each individual substance.

Mixtures are compounds that are made up of two or more chemical compounds which are not linked to each other chemically. They can be easily separated as there are no chemical reaction between each other.

Mixtures are compounds that retain their respective physical properties even though they were mixed together as there are no reaction between the two. Thus, these physical properties can be used to separate mixtures. Example: Oil in water. They have different densities. Thus, oil will float on water. We can exploit this physical property and separate them using separating funnel.

Mixtures contain different substances with different properties and chemists cannot separate one item from the mixture by forcing it to undergo a chemical change as there is no chemical reaction.

When substances are mixed together, you can see each individual component. But without knowing their property, we cannot separate them

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Based on her observations, marry infer that Frogs rest during the afternoon and become more active in the evening. option D.

Observations can occur in a lab placing or the herbal world. for example, watching an apple fall from a tree can be a commentary. Noticing that fish only come to a particular part of the river in the early morning is likewise a remark. Smelling garbage decomposing is some other instance of a remark.

The remark is the movement or technique of cautiously looking at a person or something. Careful statement of the motion of the planets. Synonyms looking, have a look at, survey, evaluation more Synonyms of statement.

Observations of a particular setting or state of affairs--this is, take field notes. next, you interpret the notes consistent with the applicable criteria. in the end, you write a nicely prepared paper that presents your observations and interpretations, typically with the goal of answering a research question.

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Due to their complete oxidation of one another, the beginning moles of the unknown acid (HA) and the final moles of the known base (NaOH) are equal.

What is oxidation, and give a case?

Summary. An element combining with oxygen is referred to as an oxidation in scientific terminology. For instance, the chemical reaction between oxygen and magnesium metal produces magnesium oxide during the oxidation of magnesium.

In order to describe a substance's reaction with oxygen, Antoine Lavoisier coined the term "oxidation." Later, when it was understood that the substance loses electrons when it is oxidized, the definition was expanded to encompass all processes in which electrons are destroyed, regardless of whether oxygen is present.

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Answer:

An example of a hypothesis based on observation and scientific principles is:

Deaf children whose parents are deaf will acquire language faster than deaf children whose parents are not deaf.

A hypothesis is an informed prediction or a tentative statement about what you think that would occur in a scientific experiment as a result of experience from observations accepted by scientific rules and law.

A hypothesis is a testable statement obtained from the research question but questions cannot be tested directly, it is the proposed relationship between the variables that are tested.

An example of a hypothesis is:

Deaf children whose parents are deaf will acquire language faster than deaf children whose parents are not deaf.

This specifies the direction of the hypothesis because one group is faster than the other.

If an acid has a pH of 2, then [H⁺] of the given acid is 100.

What is an acid?

An acid is a molecule or ion that may either donate a proton (i.e. hydrogen ion, H+) as a Brnsted-Lowry acid or establish a covalent bond with an electron pair as a Lewis acid. The proton donors, also known as Brnsted-Lowry acids, are the first type of acid. Proton donors in aqueous solutions generate the hydronium ion H3O+ and are known as Arrhenius acids. The Arrhenius hypothesis was expanded by Brnsted and Lowry to include non-aqueous solvents. A Brnsted or Arrhenius acid is often composed of a hydrogen atom coupled to a chemical structure that remains energetically advantageous following the loss of H+.

pH = log[H⁺]

[H⁺] = antilog(pH)

= 10² = 100

Hence, [H⁺] of the given acid is 100.

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HCl has a molarity of 0.010 M and is a 0.010 M solution. Since [H+] = 1 x 10-2 M, this is true. This H+ ion solution is aqueous, and its pH value is 2.

A  Lewis acid is a molecule or ion that can either contribute a proton (such as the hydrogen ion, H+) or form a covalent bond with an electron pair. The first kind of acid is the proton donor, also Brnsted-Lowry acid. Arrhenius acids are proton donors in aqueous solutions that produce the hydronium ion H3O+. Brnsted and Lowry expanded the Arrhenius hypothesis to incorporate non-aqueous solvents. A Brnsted or Arrhenius acid is frequently made up of a hydrogen atom attached to a chemical structure that continues to be energetically beneficial even after H+ is lost.

pH = log[H⁺]

[H⁺] = antilog(pH)

= 10² = 100

Hence, [H⁺] of the given acid is 100.

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Answer: 110.11g

Explanation:

If this is the question then it is as simple as adding up the masses of the different elements.

The statement ,Lewis dot diagram having 1 calcium atom and 1 oxygen atom to form an ionic bond is true.

Ionic bond or electrovalent bond is a type of bond which is formed between two elements when there is an exchange of electrons which takes place between  the atoms resulting in the formation of ions.

When the atom looses an electron it develops a positive charge and forms an ion called the cation while the other atom gains the electron and develops a negative charge  and forms an ion called the anion.

As the two atoms are oppositely charged they attract each other which results in the formation of a bond called the ionic bond.

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Answer:

A true

Explanation:

Answer:

A mixture of pre- and post-1982 pennies will represent the naturally occurring mixture of two isotopes of an imaginary element

Explanation:

Since 1982, U.S. pennies have been produced with 97.6% zinc with a thin plating of copper. Since each metal has a different density, pre- and post-1982 pennies have different masses.Different isotopes of an element generally have the same physical and chemical properties because they have the same numbers of protons and electrons.

Adding deionized water into a solution containing ions will affect the electrical conductivity of the solution because the ions in the solution will be attracted to the water molecules.

Deionized water is water that has had its ions removed. This means that it will not conduct electricity.It will cause the ions to be more spread out in the solution, which will decrease the electrical conductivity of the solution. When deionized water is added to a solution containing ions, the electrical conductivity of the solution will be reduced. The reason for this is that the ions in the solution will be attracted to the water molecules, and this will reduce the number of ions that are available to conduct electricity.

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Answer:At the end of chemical reactions, the total mass of the reatants compared to the total mass of the products - c) the mass is the same. Reason : all chemical reactions follow law of conservation of mass which states that mass of reactants and products remains the same

Explanation:hope this help <3

First, we write down our reaction:

N2 + 3H2 → 2NH3

Don't forget to balance it.

We only use moles as units.

Procedure:

3 x 1 mole H2 ------------ 2 x 1 mole NH3

3.1 moles H2 ------------- x

x = 2.1 moles NH3 are produced

Answer: 2.1 moles NH3

Which of the following atoms will bond with O in a 1:1 ratio of O and that element:

a) Lithium

b) Boron

c) Beryllium

d) Nitrogen

To solve the problem we have to look for the oxidation states of these elements.

Li: +1 B: +3 Be: +2 N: +5

These compounds will form an oxide with oxygen. The usual oxidation state of oxygen is -2. To form an oxide, we have to combine our element with oxygen and produce a compound with neutral charge.

For example, Li is +1, O is -2, so we have to combine 2 atoms of Li with one atom of O. The formula for the lithium oxide is Li₂O. Similarly we can form the other oxides. We will obtain:

Li₂O B₂O₃ BeO N₂O₅

If we look at the formulas of these oxides, the only one that will bond with O in a 1:1 ratio is Beryllium since its formula is BeO (it has one atom of O and one atom of Be).

Answer: c) Beryllium.

If we are not using the pH electrode for measurement then it should be submerged in a solution.

Firstly, we know that the pH of a solution is the negative logarithm of the hydrogen ion concentration of the solution. We know that the more the hydrogen ion concentration of the solution, the owner the pH of the solution.

Having said this, It should be recalled that the measurement of the pH is carried out by the use of the pH electrode. When  not being used between measurements, the  ph electrode be submerged in a solution.

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Answer:

0.30 moles of sodium thiosulfate formula units are needed to make 0.10 moles of AgBr soluble.

Explanation:

3Na2S2O3 + Ag Br→ NaBr + Nas [Ag(S2O3)3 According to reaction, 1 mole of silver bromide dissolves in 3 moles of Sodium thiosulfate. Then 0.10 moles of AgBr will dissolve with:3/1 x 0.10mol = 0.30mol - 0.30 moles of sodium thiosulfate formula units are needed to make 0.10 moles of AgBr soluble. Hope it will be

Answer: Nothing will happen

Explanation:

Elements want to fill their valence shell with electrons (8).

Referring to both of the table below we will know that the element with that electron configuration is Neon (Ne). It is on the far right side of the periodic table so it contains all 8 electrons in its valence shell. The elements on the right side of the periodic table are called noble gases and are not reactive because they have the maximum number of electrons.

A single electron from the outermost shell of this element will move into the outermost shell of the atom with seven electrons.Nothing will happen in these state.

Electron configurations define the arrangement of electrons around an atom's nucleus. Lithium, for instance, contains two electrons in the 1s subshell and one electron in the 2s subshell, according to its electron configuration, 1s22s1.

We may determine that Neon is the element with that electron configuration by looking at both of the tables below (Ne). It has all 8 electrons in its valence shell since it is on the extreme right side of the periodic table.

Noble gases are the elements on the right side of the periodic table that contain the most electrons and are thus non-reactive.

Thus, Electronic configuration an element is 1s22s22p6, it is stable.

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