Hat is the average mass of a manganese atom, given in amu and in kg? please do a unit conver- sion to calculate the mass in kg from the mass in amu

Ionic compounds are formed from ionic bonds which occur when there is electron transfer, while covalent compounds share electrons. Hence, the answer is true.

Covalent compounds are compounds formed by covalent bonds. Atoms form compounds to achieve a stable electronic configuration. Covalent compounds do this by sharing their electrons. Covalent bonds are weaker than ionic compounds and mostly form gases.

Ionic compounds achieve the stable electronic configuration of noble gases by gaining or giving away their electrons. When this happens, the atoms get attracted to each other by electrostatic forces. Atoms that give away their electrons become positively charged cations and atoms that receive electrons become negatively charged anions.

Therefore, the major difference between ionic compounds and covalent compounds is that covalent compounds share electrons and ionic compounds transfer electrons.

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Polypeptides : Peptides are tiny chains of amino acids connected by the peptide bonds.

Function of polypeptides : Polypeptides aid make up proteins by bonding many amino acids conjointly.

Amino acids are organic components that comprises both amino and carboxylic acid functional groups.

Sequence of amino acids are known as polypeptides. The covalent bonds that hold on to amino acids conjointly are known as peptide bonds.

Types of amino acids : nonpolar, polar, negatively charged, and positively charged.

According to question

Linking amino acid monomers together to form a polymer requires the formation of peptide bonds.

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The gas mileage is 39.986 miles/gallon.

A gallon is a unit of volume in both the US customary and imperial systems of measurement. The US gallon is defined as 231 cubic inches (3.785 liters).

1 km = 0.621371 mi;

1 L = 0.264172 gal

a gas mileage = 17 km/L

d(automobile) =  17 km x 0.621371 km/mi

d(automobile) = 10.563 mi; the distance

V(automobile) = 1 L x 0.264172 L/gal

V(automobile) = 0.264172 gal; the volume of an automobile

a gas mileage = d(automobile) ÷ V(automobile)

a gas mileage = 10.563 mi ÷ 0.264172 gal

a gas mileage = 39.986 mi/gal

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The distance between the two hydrogen atoms in a molecule of water is 0.000000000172 m,1.72x10 ^-10m is the distance in scientific notation.

Distance is the overall movement of an object, regardless of direction. The distance can be defined as the amount of ground an object has moved, regardless of its start or end point. An object's distance can be defined as the complete distance an object travels. for example. If the car drives 5 km east and then turns 8 km north, the total distance traveled by car is 13 km.

Distance is defined as the distance, or separation, between two objects. An example distance is 5 feet between two tables. An example of distance is the difference between both sides of the problem. noun.

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Total calories (kcal), calories from fat, saturated fat, trans fat, cholesterol, sodium, total carbs, fiber, sugars, protein, vitamin A, vitamin C, calcium & iron are nutrition components that must appear on the nutrition facts food label.

Nutrition is an important factor in health and development. Better nutrition is associated with improved infant, child, and maternal health, stronger immune systems, safer pregnancies and births, reduced risk of non-communicable diseases (such as diabetes and cardiovascular disease), and longer lifespans. doing. Healthy children learn better. Well-nourished people are more productive and can create opportunities to gradually break the cycle of poverty and hunger.

Malnutrition in all its forms poses a significant threat to human health. I'm facing Malnutrition has several forms and including undernutrition (wasting or underdevelopment), inadequate vitamins or minerals, overweight, obesity, and consequent diet-related noncommunicable diseases.

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Acetic acid are in 1.52 ml if the concentration of the solution is 1.23 m 0.031  mole are present.

Here mass of acetic acid is 60g/mol and here given mole is 1.52 ml then

1.52/60= 0.025 and also here  concentration are given then concentration=n/V so, n=C×V= 1.23 × 0.025=0.03mole

So in 1.52 ml 0.03mole are seen

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In chemical communication between cells, a secretory cell secretes a chemical messenger that binds to receptors on the target cell.

Cells are the basic building blocks of all living things. The human body is made up of trillions of cells. They give structure to the body, absorb nutrients from food, convert those nutrients into energy, and perform specific functions. In multicellular organisms, such as higher plants and animals, specialized cell groups are organized into tissues and organs.

Cells can be used as the basis for describing organisms as unicellular or multicellular. Unicellular organisms are organisms that have only one cell, i.e. single-celled organisms. Prokaryotes and protists are examples. Multicellular organisms are organisms with more than one cell. Examples are plants and animals.

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In atom has 11 protons, 12 neutrons, and 10 electrons. this atom has an atomic number of 11 , an atomic mass of 23 , and an overall charge of +1 .

What is electron?

Unattached or attached to an atom, an electron is a negatively charged subatomic particle (not bound). One of the three main types of particles inside an atom, along with protons and neutrons, is an electron that is linked to the atom.

An atom's nucleus is made up of electrons, protons, and neutrons. The positive charge of a proton balances out the negative charge of an electron. An atom is in a neutral state if its protons and electrons are equal in number.

They have a mass that is considerably lower, exist outside of the nucleus, and display both wave- and particle-like properties. Since an electron is also a fundamental particle, it is unreinforced and unbroken.

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Answer:

Sun

Explanation:

he sun is a big ball of burning plasma it cuases light the sun is the seco d hottest object in the universe the sun another fact is we learned the sun isn't even a solid it's bassiclly a ball of energy or a constant flaming ball of plasma hydrogen and heluim if the sun went out we would live in darkness forever not to mention we would frezze to death

The correct answer for electron configuration of a Ca2+ ion is e. 1s22s22p63s23p6 which is isoelectronic with the noble gas argon.

Isoelectronicity is a phenomenon determined whilst or greater molecules have equal structure (positions and connectivities amongst atoms) and equal digital configurations, however, range through what particular factors are at positive places withinside the structure.

This definition is on occasion termed valence isoelectronic. Definitions can on occasion be now no longer as strict, on occasion requiring identification of the full electron matter and with it the whole digital configuration.[2] More usually, definitions are broader and can enlarge to permit one-of-a-kind numbers of atoms withinside the species being compared.[3]

The significance of the idea lies in figuring out considerably associated species, as pairs or series. Isoelectronic species may be anticipated to reveal beneficial consistency and predictability of their houses, so figuring out a compound as isoelectronic with one already characterized gives clues to feasible houses and reactions (Differences in houses which includes electronegativity of the atoms in isoelectronic species can have an effect on reactivity.)

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Sodium benzoate is a widely used food preservative. The type of cell that can utilize sodium benzoate as a carbon and energy source is pseudomonas cell.

Psuedomonas cells are simple cell. They are gram-negative or gram-positive bacteria. These cells infect humans, animals, and plants.

They grew on fruits and vegetables. They also infect or contaminate food. So they are very harmful to all living organisms.

Thus, a common food preservative is sodium benzoate. Pseudomonas cells are the only kind of cell that can use sodium benzoate as both a carbon and an energy source.

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The density of a 167.4 g sample of magnesium having a volume of 96.32 ml is 1.737 g/cm3.

The mass per unit volume is known as density. A scalar quantity, density. It is represented by the letter D, and the Greek letter rho is used as the sign for density. Mass divided by volume is how density is computed.

Mass is a physical body's total amount of matter. Mass is defined as the sum of the moles of the material and the compound's molar mass.

Given the mass is 167.4 g

The volume is 96.32 ml

mass / volume

167.4  / 96.32 = 1.737

Thus, the density of a 167.4 g sample of magnesium is 1.737  g/cm3.

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Hydrogen bonding is a unique type of dipole-dipole enchantment among molecules, now not a covalent bond to a hydrogen atom. It results from the attractive pressure between a hydrogen atom covalently bonded to a very electronegative atom consisting of a N, O, or F atom and some other very electronegative atom.

A single water molecule can form 4 Hydrogen Bonds.

A hydrogen atom this is linked to a exceptionally electronegative atom and some other relatively electronegative atom that is nearby engage with each other to form hydrogen bonds, which are an unique kind of attractive intermolecular interactions. This system is known as hydrogen bonding. Hydrogen, as an example, is covalently related to the more electronegative oxygen atom in water molecules (H2O).

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The number of residues separated amino acids that are stabilized by hydrogen bond in α helices is 3.6 amino acids residue.

When the  two or more amino acid combine to form a peptide and the water is removed then the remain of each amino acid is called amino - acids residue.

The amino group of one amino acid interacts with carboxyl group of other amino acid  to form peptide bond.

The α helix is stabilized by hydrogen bonds between the carbonyl oxygen  and amino group of every third residue in the helical turn and with each helical turn consists 3.6 amino group.

Thus, alpha - helices have 3.6 amino acids residue per turn. This means that helix 36 amino acids long form 10 turns.

Therefore, number of residues separated amino acids that are stabilized by hydrogen bond in α helices is 3.6 amino acids residue.

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A tetrahedral carbon is sp3 hybridized while a linear carbon is sp hybridized.

Carbon is a chemical element with the symbol C and atomic number 6. It is a non-metal and is tetravalent. That atom donates four electrons to form a covalent chemical bond. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025% of the Earth's crust.

Carbon is an essential element for all life forms on earth. Carbon uptake and release are part of all plant and animal life, whether these life forms take up carbon to help make food or release carbon as part of respiration. Carbon is constantly moving from place to place. Carbon is also found in fossil fuels such as petroleum (crude oil), coal, and natural gas. Carbon is also found in dead, decaying animals and animal waste soils. Carbon is stored in the biosphere of plants and trees.

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Ramelteon is a hypnotic agent used in the treatment of insomnia. The molecular formula of this compound is C16H21NO2.

The molecular formula is the number of elements that are present in a compound. The molecular formula is calculated in terms of the empirical formula since the empirical formula is just the same or a multiple of the molecular formula.

The formula is :

              n=M/mass of the empirical formula

Where,

M is the molar mass and n is an integer.

For example, the molecular formula of Caffeine C8H10N4O2 and its empirical formula is C4H5N2O.

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Answer:

0.130058

Explanation:

divide the mass / volume by 27.68

The parts of polypeptide participate in bonds that hold together secondary structure and tertiary  Secondary structure shape is supplied via way of means of hydrogen bonds among atoms withinside the polypeptide spine of proteins. Interactions among the aspect chain atoms of the amino acid subunits shape the confirmation.

The  Secondary structure shape includes nearby packing of the polypeptide chain into α-helices and β-sheets via way of means of hydrogen bonding among the peptide bond and the significant carbon spine. Tertiary (3D) shape is the form that outcomes from secondary structural folding decided via way of means of interactions among amino acid aspect chains.

Secondary structure outcomes from hydrogen bonds that shape among atoms withinside the polypeptide spine. A hydrogen bond is shaped among a partially bad oxygen atom and a partially effective nitrogen atom.

The tertiary structure is stabilized via way of means of aspect chain purposeful corporations inclusive of numerous interactions, in particular hydrogen bonds, salt bridges, covalent disulfide bonds, and hydrophobic interactions.

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Answer:

Explanation:

To determine the mass of each compound, we need to convert them into units of moles first. We use avogadros number to do this and use the molar mass of the compounds to convert to mass.

3.01 × 1023 molecules H2O ( 1 mole / 6.022x10^23 kg) (18.02 g / 1 mole) = 9.01 g

8.32 × 1020 formula units CaBr2 ( 1 mole / 6.022x10^23 kg) (199.89 g / 1 mole) = 0.28 g

1.93 × 1026 molecules XeF6 ( 1 mole / 6.022x10^23 kg) (245.28 g / 1 mole) = 78610.16 g

Conevrting 1.9 kilojoule(kJ) into:

a) 1.9 kJ = 450 cal

b) 1.9 kJ = 1900 J

Similar to how kilometers measure distance, a kilojoule is a unit used to measure energy. Some nations continue to utilize the Calories (Cal) system, which was once used to quantify food energy. These are the conversions: 1 kJ = 0.2 Cal.

A calorie is a unit of energy measurement. Typically, the energy content of meals and beverages is determined in terms of calories. You must consume fewer calories each day than your body uses up in order to lose weight. Calories are necessary for human survival. Without energy, the body's cells would die, the heart and lungs would stop pumping, and the organs wouldn't be able to carry out essential life tasks. Through their consumption of food and liquids, people can absorb this energy.

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Answer:

Mass.

Si Unit Measurement.

volume.

milliliters.

Answer:

C. Motion

Explanation:

Potential energy is the energy stored within an object.

Kinetic energy is the energy an object posesses due to its motion.

True, the specific heat capacity of an object depends only on the substance from which the object is made.

Specific heat capacity is defined as the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

The SI unit of specific heat capacity is joule per kelvin per kilogram.

The specific heat capacity at constant volume is written as,

[tex]C_{V} = (du/dt)_{V}[/tex]

The specific heat capacity at constant pressure is written as,

[tex]C_{P} = (dh/dT)_{P}[/tex]

here, u is the internal energy of system in kJ/kmol and h is the enthalpy of system in kJ/kmol.

For an Ideal gas the relation between heat capacity at constant volume and at constant pressure can be written as ,

[tex]C_{P} - C_{V} = R[/tex]

Specific heat capacity is an intensive property i.e., independent of quantity. No matter how much substance we have, its ability to absorb heat energy at a particular temperature is the same.

So, we can say that the specific heat capacity of an object depends only on the substance from which the object is made and not on its quantity.

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Answer:

First, I will convert from grams to moles. This will give me approximately 4.032 moles of carbon, 6.740 moles of hydrogen, and 3.344 moles of oxygen. Then, I will calculate the mole ratio, using whole numbers. I must also identify the least amount of moles in an element for this step, which is oxygen at 3.344 moles.

Oxygen = 3.344/3.344 = 1

Carbon = 4.032/3.344 = 1

Hydrogen = 6.740/3.344 = 2

The empirical formula will be COH2.

Now that we have the molar mass of the molecular formula, we can calculate for the molecular formula. First, we will begin by discovering the molar mass of the empirical formula, which will be C molar mass x 1 + O molar mass x 1 + H molar mass x 2. That will be equal to 60.949. After that, we can divide the molecular mass by the empirical formula molar mass, giving us approximately 3. Now we will multiply the empirical formula by 3, giving us our molecular formula, which will be equal to C3O3H6.

Nitrogen gas is the major component of air. a sample of nitrogen gas in a glass bulb weighs 243 mg. 2.43 × 10-4 kg is this mass in si base units of mass (kilograms).

Nitrogen, or N, using its scientific abbreviation, is a colorless, odorless element. Nitrogen is in the ground under our feet, in the water we drink, and in the air, we breathe. In fact, nitrogen is the most abundant element in the Earth's atmosphere, with approximately 78% of the atmosphere being composed of nitrogen.

Nitrogen is commonly used during sample preparation for chemical analysis. Used to concentrate and reduce the volume of liquid samples. Nitrogen is also important for the chemical industry. It is used in the production of fertilizers, nitric acid, nylon, dyes, and explosives*. Exposure to very high concentrations of pure nitrogen can cause dizziness, drowsiness, displacing oxygen from the air, unconsciousness, and death.

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If a mixture of quartz and bauxite contains 78% of quartz this means

There are 78gm of quartz in 100 gm of mixture/

There are 78gm of quartz for every 22 gm of bauxite.

There are 117gm of quartz for every 150gm of mixture.

If there is 78% of quartz in mixture of quartz and bauxite then

78% of quartz in 100% of mixture

If we suppose we have 100gm of mixture

Then ,

78% of 100 gm = 78gm

i.e. we have 78gm of quartz in mixture

100gm = quartz+ bauxite

100gm +78gm + bauxite

100- 78 = bauxite

Therefore bauxite = 22gm

Thus in 100 gm of mixture there is 78 gm of quartz and 22gm of bauxite.

If we suppose we have 150gm of mixture

Then ,

78% of 150 gm = 117gm

i.e. we have 117gm of quartz in mixture

150gm = quartz+ bauxite

150gm = 117gm + bauxite

150- 117 = bauxite

Therefore bauxite = 33gm

Thus in 150 gm of mixture there is 117gm of quartz and 33gm of bauxite.

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