Physical properties are the characteristics of matter that can be seen or measured through direct observation.
True
False

1. Porphyrin[ formal charge=0, found in haemoglobin also  found in cytochrome p-450.

2. Corrin [formal charge=0,found in vitaminB12]

3. Chlorin[formal charge =0,found in chlorophyll as Mg2+chlorin]

What is protein?

Proteins are substantial, intricate molecules that are essential to numerous bodily processes. They perform the majority of their work within cells and are necessary for the development, maintenance, and control of the body's tissues and organs.

For structures please refer attached file

For more information about protein  please visit:

https://brainly.com/question/29553607

#SPJ4

Cytochrome p-450 and hemoglobin both include porphyrin; Vitamin B12 contains corrin; Chlorophyll contains chlorin.

Neutral molecules: What are they?

A neutral molecule is one that has an equal number of protons and electrons, which prevents it from having a positive or negative electrical charge.

When an atom has an equal amount of protons and electrons, it also has an equal number of positive and negative electric charges . The atom is referred to as neutral since its overall electric charge is zero.

Structure in attachment

To know more about neutral molecules use link below:

https://brainly.com/question/10204722

#SPJ4

Strong acids are defined as the acids which posses pH values between 0-2  and strong bases are defined as the bases which posses pH values between 12-14. The acids which do not dissociate completely into its ions in an aqueous solution, are known as weak acids and the bases which do not dissociate completely into its ions in an aqueous solution, are known as weak bases.

Weak acid and weak base neutralization reaction is the reaction in which a weak acid reacts with a weak base to produce a neutral salt and water. For example, acetic acid reacts with ammonium hydroxide to form ammonium acetate and water.

Strong acids and bases are defined as the ones which dissociate completely in a solution. For, example HCl is a type of strong acid which dissociates completely into H⁺ and Cl⁻ ions in the solution. Similarly, NaOH is a type of strong base which dissociates completely in solution.

Learn more about weak/strong acids and bases from the link given below.

https://brainly.com/question/13423428

#SPJ4

Answer:

Explanation:

The actual boiling point is probably between 34C and 40C.

Temperature measures the average kinetic energy of particles of the substances. Therefore, the correct option is option D that is the actual boiling point is probably between 34°C and 40°C.

Temperature is used to measure degree or intensity of heat of a particular substance. Temperature is measured by an instrument called thermometer.

Temperature can be measured in degree Celsius °c, Kelvin k or in Fahrenheit. Temperature is a physical quantity. Heat always flow from higher temperature source to lower temperature source.

We can convert these units of temperature into one another. The relationship between degree Celsius and Fahrenheit can be expressed as:

°C={5(°F-32)}÷9

The actual boiling point is probably between 34°C and 40°C.

Therefore, the correct option is option D.

To know more about temperature, here:

https://brainly.com/question/13694966

#SPJ2

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

for more such questions on symptom

https://brainly.com/question/21078887

#SPJ8

Ethylmethylamine is a secondary amine, that has one ethyl group attached to the amine group and one methyl group, which is a also attached to the amine group.

It is represented by:

Nevertheless it can be represented by CH3CH2NHCH3.

It means that the correct answer is c. Both.

Element w is less reactive than elements x, y, and z. The element with the lower atomic number is typically less reactive.

Element w has an atomic number of 9, element x has an atomic number of 10, element y has an atomic number of 11, and element z has an atomic number of 12. Based on this information, we can conclude that element w is less reactive than elements x, y, and z.

This is because the reactivity of an element is largely determined by the number of valence electrons it has. Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical reactions. Elements with fewer valence electrons are less reactive because they are more stable. Element w has only one valence electron, while elements x, y, and z have two, three, and four valence electrons, respectively.

In general, elements with a full outermost shell of electrons, such as the noble gases, are the least reactive because they are highly stable. Elements that are close to having a full outermost shell, such as element w, are also relatively stable and less reactive. On the other hand, elements with only a few valence electrons, such as the alkali metals, are highly reactive because they are trying to gain or lose electrons in order to achieve a full outermost shell.

Overall, the reactivity of an element is determined by its electronic structure, with elements having fewer valence electrons generally being less reactive than those with more. In the case of the elements w, x, y, and z, we can see that element w has the fewest valence electrons and is therefore the least reactive.

For more such questions on Element

https://brainly.com/question/28376204

#SPJ11

Answer:

H₂ is excess reactant and O₂ the limiting reactant

Explanation:

Based on the chemical reaction:

2H₂(g) + O₂(g) → 2H₂O

2 moles of H₂ react per mole of O₂

To find limiting reactant we need to convert the mass of each reactant to moles:

Moles H₂ -Molar mass: 2.016g/mol-:

10g H₂ * (1mol / 2.016g) = 4.96 moles

Moles O₂ -Molar mass: 32g/mol-:

22g O₂ * (1mol / 32g) = 0.69 moles

For a complete reaction of 0.69 moles of O₂ are needed:

0.69mol O₂ * (2mol H₂ / 1mol O₂) = 1.38 moles of H₂

As there are 4.96 moles,

Answer:

Increase

Decrease

Explanation:While in solution, ionic substances produce ions. The ions in solution determine the conductivity of the solution.

The ionic strength of a solution shows the concentration of ions in a given solution. The more the number of ions in the solution, the greater the ionic strength of the solution and vice versa.

When HNO3 is added to a solution of KOH, the number of ions in the solution increases and so does the ionic strength of the solution.

When KOH is added to a solution of CaCl2 then Ca(OH)2 is formed. The formation of a solid precipitate decreases the concentration of ions in solution as well as the ionic strength of the solution.

Answer:

D. 110 Joules

Explanation:

Work = Force x Distance

The given force here is 55 Newtons, and the distance the object moved against the force is 2 meters.

Therefore 2 x 55 = 110 Joules of Work.

Hope this helped!

Answer:

answer is

chromosomes are made of

Answer:

single displacement reaction

The given chemical equation represents single displacement reaction as an more reactive element displaces less reactive element from  it's compound.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

Learn more about chemical equation,here:

https://brainly.com/question/28294176

#SPJ2

The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.

For such more question on polymerization

https://brainly.com/question/1602388

#SPJ8

Answer:

Explanation:

Positive- intelligent, clever, lively, energetic, economical

Negative- hectic, frugal, stingy, cunning,

The volume of \(N_2O_5\) needed to produce 9.64 L of \(NO_2\) is 4.97 L, calculated using stoichiometry and the ideal gas equation.

For more questions on stoichiometry

https://brainly.com/question/14935523

#SPJ8

Answer:

potassium I believe is the correct answer

Explanation:

Potassium is the period four element with the lowest mass; its average mass is 39.0983amu.

The fourth period of the periodic table is where potassium has its lowest atomic mass.

Atomic mass is defined as the combined mass of an atom's protons, neutrons, and electrons.  The term "atomic mass" refers to the weight of an atom or molecule. To determine the average mass of elements and molecules as well as to resolve stoichiometry issues, the atomic mass is used.

An electrically neutral atom has an equal number of protons and electrons. As a result, using any of the two formulas, we may calculate the atomic mass of an element. The atomic mass of an element grows as we move from left to right in a period of the periodic table. In the fourth period of the current periodic table, Krypton has the highest atomic mass and potassium has the lowest.

Thus, the fourth period of the periodic table is where potassium has its lowest atomic mass.

To learn more about atomic mass, refer to the link below:

https://brainly.com/question/17067547

#SPJ2

we can determine the enthalpy of reaction for the hypothetical reaction A2X4(l) + X2(g) → 2AX3(g) using the following steps:

Hess's Law of Constant Heat Summation  states that regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes.

The law is  Hess's Law  of Constant Heat Summation  is described as a manifestation that enthalpy is a state function.

Learn more about Hess law at:

https://brainly.com/question/9530080

#SPJ1

The  model of light does the example supports is the particle model.

The wave-particle duality model of light is a model which suggests that light behaves both as a [article and as a wave.

The wave-like property is seen in its properties such as reflection, refraction, diffraction, etc.

The particle nature of light is seen in the photoelectric effect and the Compton effect.

Light shining on solar cells produces a current that charges a solar calculator is an example of the photoelectric effect.

Therefore, the model of light does this example support is the particle model.

Learn more about wave-particle model of light at: https://brainly.com/question/14264284

#SPJ1

Answer:

Three lone pairs

Explanation:

From the left, O1 , has TWO lone pairs; O2 has ONE lone pairs; and O3 has THREE lone pairs

From the left, O1 , has TWO lone pairs; O2 has ONE lone pairs; and O3 has THREE lone pairs.

Answer:

1. B 2.B

Explanation:

Answer:

The total number of carbon atoms on the left-hand side of the equation is 6 x 2 = 12.

Copper is higher than silver in the electrochemical series hence copper displaces silver in the electrochemical series.

The solubility of a metal in another is determined by their relative positions in the electrochemical series. The metals that are higher above in the electrochemical series displaces the metals that are lower in the electrochemical series.

Copper is higher than silver in the electrochemical series hence copper displaces silver in the electrochemical series. Therefore, the correct explanation for an observation is that;

Learn more: https://brainly.com/question/9743981

Answer:

Observation 1 is a result of copper ions moving into the solution.

Explanation:

got it right on the test

The mass of copper nitrate produced in the reaction 3.65g of copper and 5.16g of nitric acid​ is 3.84g.

Nitric acid reacts with copper

4 HNO3(l) + Cu(s) ==> Cu(NO3)2(s and aq) + 2 NO2(g) + 2 H2O(l)

Deep blue colour characterises the copper nitrate salt that develops. Nitrogen dioxide is the gas that is created when strong nitric acid and copper interact. This maroon mist is nitrogen dioxide.

Copper :

=> mass copper nitrate

=> 3.65g Cu x 1mol of Cu/63.546 g Cu x 1 mol copper nitrate / 1 mol cu x 187.56 g/mol copper nitrate

=> 10.77g

HNO3 (Nitric acid):

=> Mass copper nitrate =3.65 g HNO3 X 1 mol HNO3/63.546 g HNO3 x 1mol of copper nitrate /4 mol HNO3 x 187.56 g/mol copper nitrate.

=> 3.84g.

Learn more about copper nitrate here:

brainly.com/question/29402119

#SPJ1

Answer:

P.E for the 4kg bowling ball held 2.5 meters above head is 100j, while the other is 60j so the 4kg ball has more potential energy

26.71 g mass of tin would be required to completely react with 1.20 L of 0.750 M HBr.

What is mass ?

Mass is a measure of the amount of matter in an object or substance. It is often expressed in units of grams (g) or kilograms (kg). Mass is a fundamental property of matter and is different from weight, which is the force exerted on an object by gravity and varies depending on the object's location. Mass can be measured using a balance or scale, and is an important factor in many chemical calculations and experiments, such as determining the amount of reactants needed for a reaction or the concentration of a solution.

First, we need to determine the number of moles of HBr in the solution:

moles of HBr = Molarity x Volume

moles of HBr = 0.750 mol/L x 1.20 L

moles of HBr = 0.900 mol

According to the balanced chemical equation, 1 mole of Sn reacts with 4 moles of HBr to produce 1 mole of SnBr₄. Therefore, the number of moles of Sn required can be calculated as:

moles of Sn = (moles of HBr) / 4

moles of Sn = 0.900 mol / 4

moles of Sn = 0.225 mol

The molar mass of Sn is 118.71 g/mol, so the mass of Sn required can be calculated as:

mass of Sn = moles of Sn x molar mass of Sn

mass of Sn = 0.225 mol x 118.71 g/mol

mass of Sn = 26.71 g

Therefore, 26.71 g of tin would be required to completely react with 1.20 L of 0.750 M HBr.

To know more about molarity, visit:

https://brainly.com/question/8732513

#SPJ1

Complete question is:  26.71 g mass in grams of tin would be required to completely react with 1.20 L of 0.750 M HBr in the chemical reaction. Sn(s) + 4 HBr(aq) → SnBr₄ (aq) + 2 H₂ (g)

The properties of a natural resource that make it useful for humans as a material or energy source is the ability to convert mass into energy and vice versa.

The expression natural resources make reference to all types of matter and energy extracted from nature that can be used to produce goods and services.

Some examples of natural resources include for example irreversible resources such as fossil fuels (i.e., oil, or coal, gas, minerals such as metals, rocks, etc) as well as those based on the use of reversible energy such as eolic air energy, solar radiation or sunlight, soil and hydric resources or water.

Therefore, with this data, we can see that natural resources can be defined as any material and or energy obtained from nature that may be irreversible or reversibly used to produce goods and services.

Learn more about natural resources here:

https://brainly.com/question/24514288

#SPJ1

What will happen to the solute molecules on the left side of the container would depend on the kind of solution present on the right side.

What will happen to the solutes in the container can be explained using osmosis.

Osmosis refers to the movement of water molecules from the region of high water potential or low solute concentration to the region of low water potential or high solute concentration through a selectively permeable membrane.

Now, let us assume that the solution on the right side of the container has a lower solute concentration, which means that water molecules would move from the right side to the left side through the semi-permeable membrane. The solutes in the left side of the container would become diluted.

If it were to be the other way round, that is, the solution on the right side has more solutes than the one on the left side. Water molecules will move from the left side to the right side. Thus, the solution on the left side will become more concentrated as a result of water loss.

More on osmosis can be found here: https://brainly.com/question/1799974

#SPJ1

1. The products in this reaction are AlCl₃(aq) and H₂(g).

2. The reactants in this reaction are Al(s) and HCl(aq).

3. The balanced equation is 2Al(s) + 6HCl(aq) → 2AlCl₃(aq) + 3H₂(g)

4. This is a single displacement reaction.

5. The symbols indicate the physical states of the reactants and products.

A single displacement reaction, also known as a single replacement reaction, is a type of chemical reaction in which an element or ion in a compound is replaced by another element or ion.

In a single displacement reaction, one reactant is usually an element in its elemental state, while the other reactant is a compound.

In the given reaction,  "Al(s)" means solid aluminum, "HCl(aq)" means hydrochloric acid dissolved in water (aq means aqueous), "AlCl₃(aq)" means aluminum chloride dissolved in water, and "H₂(g)" means hydrogen gas.

Learn more about single displacement reaction here: https://brainly.com/question/3172917

#SPJ1

If the atom of Astatine-214 undergo alpha particle, it will emit helium element as shown;

According to the decay, 4 is subtracted from the mass number and 2 from the atomic number.

According to the reaction, the new isotope produced is Bismuth-210