URGENT!! What is the consequence of carbon's unique bonding ability?

It can only bond with a select few elements.

It is very rarely found in molecules.

Only one carbon atom can be present in a molecule at a time.

It forms the basic building blocks of organic molecules.

Answer:

control variable

Explanation:

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The answer of the calculations above in scientific notation are a=8.3 ×10³, b= 3.9 × 10^¹um, c= 1.4 × 10³gmol, d= 5.6× 10²km

In calculation of various expressions, the results can be expressed in a scientific notation which is a way to compress cumbersome figures.

4.2 × 104 = 436.8

7.9 × 10³ = 7900

436.8 + 7900 = 8,336.8

The scientific notation= 8.3 ×10³kg

5.23 x 106 um = 554.38um

554.38 × 7.1 = 3,936.1

3,936.1 × 10^-²

3.9 × 10³ × 10^-²= 3.9 × 10^¹um

The scientific notation= 3.9 × 10^¹um

5.44 x 107 g = 582.08g

8.1 x 104 mol = 842.4 mol

582.08g+ 842.4 mol = 1,424.48

The scientific notation = 1.4 × 10³gmol

8.40 x 105 km = 882km

3.1 × 105 = 325.5km

882km - 325.5km = 556.5

The scientific notation = 5.6× 10²km

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A – This is the crest, the higher point of the wave

B – This is the amplitude of the wave. It is the point of maximum displacement

C – This is the trough of the wave

D – This is the wavelength of the wave.

A wave is a disturbance, along a medium that transfers energy. We know that a wave is a progressive wave if it moves from one point to another. There are several ways by which we could classify waves.

Waves could be classified as mechanical waves or as electromagnetic waves or as stationary waves and travelling waves or even as transverse waves and longitudinal waves.

In any case, the wave that we have in this image is a travelling wave and we need to obtain the parts of the wave as has been shown in the image that is attached here.

Let us identify the parts of the wave as shown;

A – This is the crest, the higher point of the wave

B – This is the amplitude of the wave. It is the point of maximum displacement

C – This is the trough of the wave

D – This is the wavelength of the wave.

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20 standard amino acids are available. Based on the structure and properties of the side chains, these amino acids can be divided into seven classes.

1. Alkyl groups

2. Sulfur-containing

3. Alcohols

4. Acids

5. Bases

6. Aromatics

7. Amides

a) Basic (contains a guanidinium group as the side chain)

b. Neutral (contains an alkyl side group)

c. Acidic (contains a carboxylic acid side chain)

d. Polar (contains an amide side chain)

e. Polar (contains a phenol side chain)

f. Non-polar (contains a benzene side chain)

g. Neutral (contains H as the side chain)

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The Complete question is mentioned below:

Classify the following amino acids as nonpolar, polar but neutral, acidic, or basic.

(a) Arginine

(b) Leucine

(c) Glutamic acid

(d) Asparagine

(e) Tyrosine

(f) Phenylalanine

(g) Glycine

The concentration of a solution that has 3 moles of c6h12o6 dissolved in 9 liters of water is 0.33M

Concentration is defined as the ratio of number of moles of solute to the volume of the solution.

Concentration = number of moles of solute/ Volume of solution

It is defined as the ratio of given mass of substance to the molar mass of substance.

Given,

given mole of solution = 3 mol

Volume of the solution = 9L.

C = 3/9

C = 1/3

C = 0.33M

Thus, we calculated that the concentration of a solution that has 3 moles of c6h12o6 dissolved in 9 liters of water is 0.33M.

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Answer:

Alpha radiation/ alpha decay

Answer:

protons 16 elecrons 16

Explanation:

this is because we say that the number of protons is equal to the number of elecrons in a give Element.

Dependent variable - backpack produced

Independent variable -  types of cloth

Control group - backpack without cloth.

In an experiment, you have the dependent and the independent variable. The independent variable is the variable that we have to change in the experiment. The independent variable is the variable that changes as we change the values in of the independent variable.

Now, we can see that the experiment is about testing which type of cloth is best for backpacks. The independent variable in this case has to be the types of cloth while the dependent variable is the backpack produced. The control group is the backpack without cloth.

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Answer:

poh = .253

p h2o= p[H+] +P[OH-]

ph2o is 14

14= pH+ + poH

14 = pH+ +.253

14-.253 =pH+

13.747 =ph+

and we know that

log [H+] = -pH+

[H+] = antilog pH+

H+ = antilog 13.747

H+ = 1.79×10-15

The mass of dinitrogen tetroxide the number of Nitrogen atoms are 46 x 10^9 gram

Given:

number of nitrogen atoms = 1 x 10^12 atoms

To Find:

mass of dinitrogen tetroxide

Solution:

From the molecular formula of dinitrogen tetraoxide;

molar mass of dinitrogen tetraoxide = 92 g/mol

92 g of dinitrogen tetraoxide contains 2 atoms of nitrogen

x g of dinitrogen tetraoxide will contain 1 * 10^12 atoms of nitrogen

x = 92*1* 10^ 9/2

x = 46 x 10^9 gram

Hence, the number of Nitrogen atoms are

Hence, the number of Nitrogen atoms are 46 x 10^9 gram

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Answer:

The mass of dinitrogen tetroxide the quantity of Nitrogen particles are 46 x 10^9 gram

Number of nitrogen atoms = 1 x 10^12 atoms

Explanation:

From the atomic Formula of dinitrogen tetraoxide;

molar mass of dinitrogen tetraoxide = 92 g/mol

92 g of dinitrogen tetraoxide contains 2 molecules of nitrogen

x g of dinitrogen tetraoxide will contain 1 * 10^12 molecules of nitrogen

x = 92*1* 10^ 9/2

x = 46 x 10^9 gram

the quantity of Nitrogen molecules are 46 x 10^9 gram

The term that can be used to describe this model element compound or molecule is compound. The correct option is b, compound.

Chemical Compounds are substances that are made by joining two or more chemical elements or substances. Compounds are always made of two or more elements.

The picture is given of ammonia, which is made up of nitrogen and hydrogen. The formula of ammonia is NH₃. The compounds are made up of the joining of molecules that are the smallest unit of these compounds.

Thus, the term that will use is compound. The correct option is b.

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The missing image is added below:

A system of two atoms, each having only 3 quantum states of energies 0, e and 2s. The system is in contact with a heat reservoir at temperature T.

The quantum state of a particle is defined by the values of its quantum numbers, so what this implies is that no two electrons within the same atom can have the identical set of quantum numbers.

In natural philosophy, a quantum state may be a mathematical entity that gives a probability distribution for the outcomes of every possible measurement on a system. Knowledge of the quantum state along with the foundations for the system's evolution in time exhausts all which will be predicted about the system's behavior.

For example, the spin of an isolated electron can tackle one amongst only two values; there aren't any other quantum states available for the electron and no intermediate values, since spin is quantized . As a physical parameter is varied, quantum fluctuations can drive a natural action into a special phase of matter.

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Uranium is the element which could not form in the sun and would have to be formed in a supernova

With an atomic number of 92, uranium is a metallic chemical element in the periodic table that is silvery-white. The chemical symbol for it is U. There are 92 protons and 92 electrons in an atom of uranium, of which 6 are valence electrons. The atomic weight of uranium is the greatest among all naturally occurring elements.

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Wavelength of (nm) of photon emitted is 438nm

Wavelength is the distance between identical points means adjacent crest in the adjacent cycles of a waveform signal propagated in space or along a wire

Here in the given data is photon emitted when electron drop at 7th orbital means n = 7 and n = 1 for hydrogen atom and redberg constant is also given = 1.097×10⁷m⁻¹

we have to find wavelength = ?

Expression of wavelength of radiation is

1/λ = R (1/n₁² - 1/n₂²)

1/λ = 109677×(1/7²- 1/1²)

1/λ =  109677×48/49

λ = 438.69cm = 43869m

λ = 438nm

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Answer:

When an acid reacts with a base, they undergo neutralization and their opposite pH levels cancel each other out. This happens through the double displacement of ions or, put simply, the ions switch partners.

Explanation:

When an acid and a base are placed together, they react to neutralize the acid and base properties, producing a salt. The H(+) cation of the acid combines with the OH(-) anion of the base to form water. The compound formed by the cation of the base and the anion of the acid is called a salt.

An example of neutralization reaction is: HCL + NaOH ⇆ NaCl +

acid + base ⟶ water + salt.

HCl(aq) + KOH(aq) ⟶ H 2O(ℓ) + KCl(aq)

2 HCl(aq) + Mg(OH) 2(aq) ⟶ 2 H 2O(ℓ) + MgCl 2(aq)

HCl(aq) + NH3(aq) ⟶ NH4Cl(aq)

Answer:

neutralize one another and produce salts

Explanation:

When mixed, acids and bases neutralize one another and produce salts, substances with a salty taste and none of the characteristic properties of either acids or bases.

Coordination numbers are defined for the crystalline structures that tell about the numbers of atoms bonded to the central atom. The coordination number of a diamond is 4.

A coordination number has been defining the number of the ions, atoms, and molecules that are bonded to the central atom of the crystalline compound or a complex.

The diamond has 8 carbon atoms in its one unit and its coordination number is 4 as its lattice type is face-centered cubic that has carbons at the corners and face center of the structure. One carbon contributes 1/8 hence and the faces center contributes 1/2.

Therefore, the diamond has a coordination number of 4.

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The earliest nebulae to form in the universe were made almost of Hydrogen and Helium.

The first atmosphere on Earth, 4.6 billion years ago, was most likely made up of Hydrogen and Helium. These are the two most prevalent gases in the universe. Several other gases were infused into the atmosphere as a result of outgassing or the upsurge of vapors from the Earth's core.

Planetary outgassing, comet collisions, and volcanic eruptions formed the Earth's first atmosphere. Helium and Hydrogen in the early Earth's crust were heated up and managed to escape the gravity of the Earth, only for the solar wind to blow them away.

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Answer:

BaS

Explanation:

The chemical formula of Barium sulfide is BaS. It's molar mass is 169.39 g/mol.

Answer:

3.141592653589793238

Explanation:

3.141592653589793238

The molar mass of the unknown compound in the aqueous solution was 223.2 g/mol.

Osmotic pressure can be described as the minimum pressure requires to be applied to a solution to stop the flow of its pure solvent across a semipermeable membrane. The measurement of the tendency of a solution to take in a pure solvent by osmosis is osmotic pressure.

To determine the molar mass of a compound from the given weight, the concentration of the compound needs to be determined.

π = i ×MRT

8.44 = 1×M× 62.36 ×298

M = 4.54 × 10⁻⁴ M

Given the mass of the unknown compound = 15.2 mg = 0.0152 g

The volume of the compound = 150 ml =0.150 L

From the molarity of the compound, we can determine the molar mass as:

Molarity = mass/(Molar mass × Volume)

Molar mass =  mass/(Molarity × Volume)

Molar mass = 0.0152/ (4.54 × 10⁻⁴ × 0.150)

Molar mass = 223.2 g/mol

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The relationship between the volume and the mass of the object is shown by option A.

Density gives the ratio of the mass to the volume of an object. We know that volume is an intrinsic property. This implies that it does not change with the amount of the substance. It can be used to identify a given substance because it does not change with the mass or the quantity of the substance present.

It is possible to see that the relationship between the volume and the mass of the object. This relationship is based on the density of the object that is under consideration. The first question that we would have to ask is if the volume changes with the mass of the object.

Given the fact that we have established that the ratio of the mass to the volume of a body is always a constant, we can conclude that the mass does not undergo any change with the volume of the object.

We can conclude that the relationship between the volume and the mass of the object is shown by option A.

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The initial weight of mercury oxide in the sample was 59.1 g HgO.

chemical reaction

2HgO ⟶ 2Hg + O₂

the moles of O₂

pV = nRT

n = (pV)/(RT)

Data:

p = 0.970 atm

V = 4.50 L

R = 0.082 06 L·atm·K⁻¹mol⁻¹

T = 390.0 K

Calculation:

n = (0.970 × 4.500)/(0.082 06 × 390.0)

n = 0.1364 mol O₂

the moles of HgO

The molar ratio is 1 mol O₂/2 mol HgO.

Moles of HgO = 0.1364 mol O₂ × (2 mol Hg/1 mol O₂)

Moles of HgO = 0.2728 mol HgO

the mass of HgO

Mass of HgO = 0.2728 mol HgO × (216.59 g HgO/1 mol HgO)

Mass of HgO = 59.1 g HgO

For the creation of various organic mercury compounds and specific inorganic mercury salts, mercury(II) oxide, or HgO, serves as a source of elemental mercury.

This red or yellow crystalline substance is also utilised in mercury batteries and zinc-mercuric oxide electric cells as an electrode (combined with graphite).

Mercuric oxide is a colourless, crystalline powder that ranges from yellow to orange-yellow.

It serves as a seed protectant, a pigment, a preservative, and an ingredient in alkaline batteries and cosmetics.

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The number of electrons present in the outermost shell is called valence electrons.

The number of electrons present in the last shell is called valence electrons. The atomic number of sodium is 11 and the atomic number of oxygen is 8.

There is 1 valence electron in sodium. The number of valence electrons in oxygen is 2.

The atomic number of iodine is 53. The number of the valence electron in iodine is 1. The atomic number of calcium is 20. The valence electron in calcium is 2.

Therefore, The number of electrons present in the outermost shell is called valence electrons.

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Answer:

D

Explanation:

this is because the number of protons is always equal to the number of electrons of an atom

The atomic mass of Indium obtained is 60.544 g

For every 1g of Oxygen  4.784 g of Indium Oxide

Atomic mass of oxygen, O2 = 16.00 g

Now,

For Indium Oxide,

Mass of oxygen present = 3*16.00 = 48.00 g

Mass of Indium Oxide = 4.784 g * 48.00 g = 229.632 g

Let atomic mass of Indium

Mass of Indium Oxide = 2*M  + 3* 16.00 g

229.632 g = 2 * M + 48.00 g

2 M = 181.632 g

M = 181.632 g / 2

M = 90.816 g

For InO

Mass of oxygen present = 1* 16.00 g = 16.00 g

Mass of InO = 4.784 g * 16.00 g = 76.544 g

Let the atomic mass of Indium = M

Mass of InO = M * 1 g + 1*16.00 g

76.544 g = M + 16.00 g

M = 60.544 g

Hence the value obtained is 60.544 g

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If the air pressure is reduced, the pointer or hand of the Torricelli's mercury barometer sinks or falls to the bottom.

An inverted (upside-down) glass tube standing in a mercury bath is a Torricellian barometer, also known as a mercury barometer. Some of the mercury's surface particles climb up the tube as a result of air pressure pushing down on it. The mercury rises more rapidly when air pressure increases.

A tall closed tube placed upside-down in a mercury bath, which is a thick liquid metal at room temperature, creates the simplest type of barometer, with the liquid rising partially up the tube as it does in a thermometer. Because mercury is more practical than water for barometers, we utilize it instead. Due to its lower density than mercury, water will be lifted by air pressure significantly higher up a tube than the same volume of mercury.

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The given chemical reaction between acetic acid and sodium hydroxide has sodium acetate and water as its products.

The balanced equation of a chemical reaction between acetic acid and sodium hydroxide is:

[tex]CH_3COOH (aq) + NaOH (aq) \rightarrow CH_3COONa (aq) + H_2O (l)[/tex]

This reaction is a neutralization reaction between a weak acid (acetic acid) and a strong base (sodium hydroxide).

In a neutralization reaction, an acid and a base mix chemically to provide salt and water as the final products. [tex]H^+[/tex] ions and [tex]OH^-[/tex] ions combine to generate water during a neutralization process. Because acid and base balance each other out to create a neutral chemical, this reaction is therefore known as a neutralization reaction.

In a balanced equation, the number of atoms of each element remains the same before and after the reaction. Therefore, in this reaction, on the products side, the number of atoms of Carbon (C) is 2, Hydrogen (H) is 5, Oxygen (O) is 3 and Sodium (Na) is 1.

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An element is any naturally occurring substance found on Earth that is normally identified by the atomic number (option D).

An element is the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons.

Chemical elements are arranged in accordance with their atomic numbers on the periodic table.

Each element has its own unique symbol but are usually identified by its atomic number. All elements possess its own atomic number.

Therefore, an element is any naturally occurring substance found on Earth that is normally identified by the atomic number.

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Answer:

the number in front of the chemical

Explanation:

example: 4c is 4 carbon 4 os the coefficient of c

The liquid poured into the graduated cylinder has a specific weight, density, and specific gravity of 22,222.22 N/m3, 2,265.26 kg/m3, and 2.26526, respectively.

Given: weight = 10 N  and volume = 450 mL or 0.450 L

The specific weight of a substance is defined as its weight per unit volume or density of a substance multiplied to the acceleration of gravity. To obtain a specific weight with units of N/m3, we will be converting the volume from L to m3.

Specific weight = 10 N / 0.450 L = 22.22 N/L

Specific weight = (22.22 N/L) * (1000 L/ 1 m3) = 22,222.22 N/m3

The density can be determined by dividing specific weight by the acceleration of gravity.

Density = Specific Weight / gravity

Density = 22,222.22 N/m3 / 9.81 m/s2

Density = 2,265.26 kg/m3

Specific gravity is a dimensionless quantity of the ratio of the density of a substance to the density of water. The density of water that will be used is 1000 kg/m3.

Specific gravity = Density of substance / Density of water

Specific gravity = 2,265.26 kg/m3 / 1000 kg/m3

Specific gravity = 2.26526

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Answer:

1 Answer. fruity · Stefan V. The answer is 2.5 g/cm3 .

Explanation: