if the phases of matter are arranged in order of increase disorder, what would that arrangement be

Answer:

1) 40

2) 2.25 moles

3) 17

4) 120

5) Fe₂O₃

Explanation:

Please see attached picture for full solution.

Answer:

1) \(\boxed{Molar \ mass = 40\ g/mol}\)

2) \(\boxed{No.\ of\ Moles = 1.61 \ moles}\)

3) \(\boxed{Ammonia = 16\ g/mol}\)

4) \(\boxed{Sodium\ Hydrogen\ Sulphate= 120 \ g/mol}\)

5) \(\boxed{Fe_{2}O_{3}}\)

Explanation:

Question # 1:

Using Formula, No. of moles = Mass in grams / molar mass

Where moles = 0.375 mol. , mass = 15 g

=> Molar Mass = Mass in grams / No. of moles

=> Molar Mass = 15 / 0.375

=> Molar mass = 40 g/mol

Question # 2:

No. of moles = Mass in grams / Molar mass

Where Mass = 90 g ,

=> Molar Mass = \(MgO_{2}\)

=> MM = 24 + (16*2)

=> MM = 24 + 32

=> MM = 56 g/mol

No. of Moles = 90 / 56

No. of Moles = 1.61 moles

Question # 3:

Ammonia => \(NH_{3}\)

N has atomic mass 14 ang H has atomic mass 1

Ammonia = (14)+(1*2)

Ammonia = 14+2

Ammonia = 16 g/mol

Question # 4:

Sodium Hydrogen Sulphate => \(NaHSO_{4}\)

Where Na has atomic mass 23, H has atomic mass 1 , sulpher 32 and oxygen 16

\(NaHSO_{4}\) = 23+1+32+(16*4)

=> 56+64

=> 120 g/mol

Question # 5:

The metal which has relative atomic mass of 56 is Iron (Fe)

Given that the oxide contains 70.0 % of Metal

Mass of \(MO_{x}\) (Metal oxide) = 56 / 70 * 100

Mass of \(MO_{x}\) (Metal oxide)  = 0.8 * 100

Mass of \(MO_{x}\) (Metal oxide)  = 80

Mass of x O's = 80 - 56

Mass of x O's = 24

Now, Mass of O = 24 / 16

Mass of O = 1.5

So, Fe Metal and its oxide are in the ratio of

1 : 1.5

×2   ×2

2 : 3

So, the empirical formula of metal with its oxide is \(Fe_{2}O_{3}\)

Answer:

it can't rust simply because it doesn't contain any iron or any of it's alloys. In fact, not even all metals rust.

Explanation:

The solubility of carbon dioxide in water at an atmospheric pressure of 0.540 atm is 1.40x10⁻² M

The amount of a substance's concentration that dissolves in a solvent at a particular temperature is known as its solubility. The type of bond, mass, temperature, and pressure all affect solubility.

The solubility can be calculate with formula below:

S = KH*P  

where

S= Solubility

KH = measure of hardness of water / carbonate hardness = 3.50*10⁻² mol/L.atm

P = atmospheric pressure = 0.5400 atm

Thus, we got

S = KH*P

= (3.50x10⁻² mol/L.atm)*(0.5400 atm)

= 1.89 x 10⁻² mol/L

But 1 mol/L = 1 M,

Therefore, the answer (1.40*10⁻² mol/L ) is equivalent to  1.40x10⁻² M

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Answer:

I cannot see any picture

Explanation:

Please put a picture

Answer:

sure what's the question

Explanation:

The ksp value for calcium hydroxide at this temperature is 5.20 × 10⁻⁶.

Ksp is an equilibrium constant of a solid substance dissolved in a liquid solution.

Given that, the volume of water is 0.178 l, 0.264 g of Ca(OH)² dissolves in enough water

The solution equilibrium is

Ca(OH)² = Ca + 2OH

The molar solubility is

0.186 / 74.00  / 0.230 = 0.0109 M

The ksp value will be

Ksp = (s) (2S)²

Putting the values in the formula

(0.0109) x (2 x 0.0109)² = 5.20 × 10⁻⁶.

Thus, the ksp value for calcium hydroxide is 5.20 × 10⁻⁶.

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An amino acid is considered "limiting" if it is absent from food in sufficient quantities to meet a person's needs. Option c is the correct option.

What is an amino acid?

Organic substances known as amino acids have both amino and carboxylic acid functional groups. Alpha-amino acids, which make up proteins, are by far the most significant of the hundreds of amino acids found in nature. In the genetic code, only 22 alpha amino acids are present.

The building blocks of proteins and amino acids are essential for the structure and operation of all living cells. The body cannot synthesize essential amino acids, so they must be consumed through diet. An amino acid is considered "limiting" if it is absent from food in sufficient quantities to meet a person's needs. If a protein lacks enough of one or more essential amino acids, it is said to be "limiting". This indicates that the protein cannot be utilized effectively by the body and, if consumed in large amounts, may result in deficiencies. Taking essential amino acid supplements can help to make up for these deficiencies and enhance general health.

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6 + 12 + 6 = 24 atoms

hence the answer is 24

Answer:

Animal

Explanation:

Answer:

Hope this may help you

Answer:

Explanation:

The most prominent function of mitochondria is to produce the energy currency of the cell, ATP (i.e., phosphorylation of ADP), through respiration and using sugar as fuel, and to regulate cellular metabolism .

3.3256 Liters

See the image I have shared to you above

Answer:

B. 7.2k

Explanation:

took the test ;)

The classification is:

Organic substances known as amino acids have both amino and carboxylic acid functional groups. Only 22 of the hundreds of amino acids found in nature are alpha amino acids, which are by far the most common and make up proteins. Only 22 alpha amino acids are found in the genetic code. Alpha-, beta-, gamma-, or delta-amino acids can be categorized according to where the main structural functional groups are located; further classifications relate to polarity, ionization, and the kind of side chain group (aliphatic, acyclic, aromatic, containing hydroxyl or sulfur, etc.). Amino acid residues are the second-largest component of human muscles and other tissues, behind water, in the form of proteins.

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The elements X and Y are in the same column on the periodic table, which means they have the same number of valence electrons.

Ionization energy refers to the amount of energy required to remove an electron from an atom. As we move down a group in the periodic table, ionization energy generally decreases because the valence electrons are farther from the nucleus and experience less attraction.

In this case, element Y has a higher atomic number, which means it has more protons in its nucleus than X. This means that there is a stronger attraction between the valence electrons and the nucleus in Y compared to X. Therefore, it would require more energy to remove an electron from Y, making it have a higher ionization energy than X. So, the correct option is "y because it contains more protons so there is a stronger attraction between the valence electrons and the nucleus."

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Answer:

7.432

Explanation:

There are 100 mg in a decigram, then use that to solve

Answer: 7.423 decigrams

Explanation: 1 mg equals 0.01 decigrams

A chemical substance that cannot be broken down into simpler substances by chemical means is called an "element."

Elements are the fundamental building blocks of matter and are composed of only one type of atom. Each element is represented by a unique chemical symbol, such as H for hydrogen, O for oxygen, and Au for gold.

The simplest and most fundamental types of matter are elements, which nonetheless have their chemical characteristics. According to their atomic number and other characteristics, they are arranged in the periodic table. There are currently 118 known elements, and each one has unique properties and behaviors.

A few examples of elements are gold (Au), iron (Fe), carbon (C), nitrogen (N), carbon (C), oxygen (O), and hydrogen (H). Elements are the fundamental building blocks of all chemical substances and are essential for chemical reactions as well as the synthesis of molecules and compounds.

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The correct answer is c. C₂H₂, which has the shortest carbon-carbon bond length.

The compound with the shortest carbon-carbon bond length is c. C₂H₂, which refers to ethyne or acetylene. Ethyne consists of a triple bond between the two carbon atoms, resulting in a shorter bond length compared to the other compounds listed.

In option a, CH₃CH₃ (ethane), the carbon-carbon bond is a single bond, which is longer than a triple bond.

In option b, CH₂CH₂ (ethylene), the carbon-carbon bond is a double bond, which is longer than a triple bond but shorter than a single bond.

Therefore, the correct answer is c. C₂H₂, which has the shortest carbon-carbon bond length due to the presence of a triple bond between the carbon atoms.

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The change in enthalpy for the reaction of carbon dioxide is -393.5 kJ/mol. Thus, option A is correct.

The change in enthalpy of the reaction is given by the energy of the product and the energy of reactant difference.

The chemical equation for the reaction is:

\(\rm C \;(s)\;+\;2\;O_2\;(g)\;\to\;CO_2\;(g)\)

The standard enthalpy change for carbon dioxide is -393.5 kJ/mol

The standard enthalpy change for oxygen is 0 kJ/mol

The change in enthalpy of reaction is given as:

\(\rm \Delta \textit H=CO_2-2\;\times\;O_2\\\Delta \textit H=-393.5\;kJ/mol-2\;\times\;0\;kJ/mol\\\Delta \textit H=-393.5\;kJ/mol\)

The change in enthalpy for the reaction of carbon dioxide is -393.5 kJ/mol. Thus, option A is correct.

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Answer:

-393.5 kJ

Explanation:

edg 22, goodluck!

The molal concentration of sodium chloride in the sports drink solution is 0.000309 mol/kg.

To calculate the molal concentration of sodium chloride in the sports drink solution, we need to first determine the number of moles of sodium chloride present in the solution and then divide it by the mass of the solvent (in kg).

The formula for calculating the number of moles of solute is:

n = m/M

where:

n = number of moles of solute

m = mass of solute (in grams)

M = molar mass of solute

The molar mass of sodium chloride (NaCl) is 58.44 g/mol.

First, we need to convert the mass of sodium chloride from grams to kilograms:

4.50 g = 4.50/1000 = 0.0045 kg

Now, we can calculate the number of moles of sodium chloride in the solution:

n = m/M = 0.0045 kg / 58.44 g/mol = 0.0000772 mol

Next, we need to determine the mass of the solvent in the solution (assuming that the density of the solution is 1.00 g/mL):

250 mL = 250/1000 = 0.25 L (volume of solution)

mass of solvent = volume of solution x density of solution

mass of solvent = 0.25 L x 1000 g/L = 250 g

Now, we can calculate the molal concentration of sodium chloride in the solution:

molality = n / (mass of solvent in kg) = 0.0000772 mol / 0.250 kg = 0.000309 mol/kg

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Answer:

the answer for the question is 40 mL

Moles of Hg

2 moles produce 1 mol O2

1 mol produces 1/2mol O_2

0.006 mol produces

Explanation:

K2SO3

hope it helps!

.....

Answer:

There are no options but the question can be answered based on general understanding of experimentation.

Group A: Control group

Group B: Experimental group

Explanation:

In an experiment, there are two groups viz: the control group and the experimental group. A control group is the group that does not receive any experimental treatment. It is considered the normal group while the experimental group is the group that is subjected to experimental treatment.

N.B: The experimental treatment in this case is the "Oxygen level"

According to the question, out of 20 petri-dishes used to grow bacteria, half (10) of the petri-dishes were placed in a container with normal atmosphere while the other 10 petri-dishes were placed in another container that have double the normal oxygen level. The first group of bacteria labelled GROUP A are the CONTROL GROUP because they were not given any treatment i.e placed under normal conditions while GROUP B are the EXPERIMENTAL GROUP because they are the group that received the experimental treatment (increased oxygen level).

Propane (C3H8) is a compound that does not have four unique hydrogens, resulting in a lack of four sets of absorptions in its 1H NMR spectrum. Propane is a three-carbon hydrocarbon molecule with eight hydrogen atoms. In this molecule, all the hydrogen atoms are equivalent because they are attached to the same carbon environment.

In the 1H NMR spectrum of propane, there will be a single peak corresponding to the four equivalent hydrogen atoms. These hydrogen atoms experience the same chemical environment and exhibit identical chemical shifts, resulting in their combined signal. Consequently, no further differentiation or splitting into multiple sets of absorptions occurs.

The absence of distinct peaks or sets of absorptions in the 1H NMR spectrum of propane is a characteristic feature of molecules with equivalent hydrogen atoms. In more complex organic molecules, different hydrogen atoms attached to different carbon environments can exhibit distinct chemical shifts, leading to multiple sets of absorptions in the spectrum. However, in the case of propane, all the hydrogen atoms are indistinguishable, resulting in a single peak representing their combined signals in the 1H NMR spectrum.

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The experimental set up in B is to observe the growth the green beans without the addition of fertilizer. Thus, we can compare the growth of the plant with and without fertilizer and thereby we can understand the effect the fertilizer on the plant growth.

Fertilizers are chemical substances used to nourish the plants by making the soil rich in nutrients and minerals. Plants needs minerals along with water such as potassium, calcium, phosphorous, nitrogen etc.

Sometimes the soil comes deficient of these minerals and we have to fertilize the soli by the addition of the chemicals containing these minerals. Hence, fertilizers provide a nutrient rich soil for plant growth.

The experimental set up with fertilizer added plant and the second one (B) without fertilizer helps to compare the growth in both conditions and we can clearly understand how fertilizers effect the growth of plants by comparing the plant growth in A and B.

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The effect does 35.6 have on the measures of central tendency for the data in the left column is the mean will be lower than the median and mode. Thus option C is correct.

Mean is defined as a quality that has a value intermediate between those of the extreme member of some set

Mode is defined as the value that appear most frequently in the data sheet.

Median is defined as a statistical measure that determine the middle value of the data sheet listed in ascending order.

The total number of plant = 10

Mean = 30.26

Median = 30.5

Mode = 30.5

Thus, the effect does 35.6 have on the measures of central tendency for the data in the left column is the mean will be lower than the median and mode. Thus option C is correct.

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