Which are characteristics of all living things?

Answer:

Magnesium Nitrate is an ionic compound formed by cation Magnesium Mg+2, and polyatomic anion Nitrate NO−3. The charges must be equal and the opposite in order for these two ions to bind. Therefore, the one + 2 magnesium ion would require two -1 nitrate ions to balance.

Refer to the attachments

Answer: Ionic Compound

Explanation:

An ionic compound is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element or the metal and the element which accepts the electrons is known as electronegative element or non metal.

A covalent compound is formed when an element shares its valence electron with another element. This bond is formed between two non metals.

Mercury flouride contain ionic bonds as it is made up of mercury metal and fllourine non metal.

The number of moles of the gas is 0.016 moles

The airbag reaction is the nitrogen gas obtained by the decomposition of sodium azide and the reaction is

2NaN₃ → 2Na + 3N₂

Then it is under ideal condition

P = 1atm

V = 1L

T =  495°C or 768 K

n = ?

We have to calculate moles of nitrogen = ?

R = 0.082 atm LK⁻¹mol⁻¹

So the formula is

PV =nRT

n = PV/RT

n = 1 atm×1L/0.082 atm LK⁻¹mol⁻¹×768 K

n = 0.016 moles

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The molar extinction coefficient is specific to the substance being measured and the wavelength of light used. Accurate and precise values for absorbance, concentration, and path length are necessary for an accurate calculation.

To calculate the molar extinction coefficient (ε) using wavelength (λ) and absorbance (A):

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Answer:

A- Hydrogen Fluoride, HF

Answer:

answer number C is the correct answer for this

Nadia will take 8 seconds to reach her friend's house.

Speed is the measure of the distance traveled by an object per unit of time. It is a scalar quantity and is typically expressed in units such as meters per second (m/s), miles per hour (mph), or kilometers per hour (km/h).

To calculate the time Nadia will take to reach her friend's house, we can use the formula;

time = distance / speed

where distance is the amount of space traveled by an object, and time is the duration of travel.

Put the values given in the problem, we have:

time = 24 meters / 3 m/s

time = 8 seconds

Therefore, Nadia will take 8 seconds.

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1. The IUPAC name of N is nitrogen.

2. Nitrogen dioxide

3.The IUPAC name of O is oxygen

4.The IUPAC name of OH is hydroxyl.

The IUPAC name of ·0 is a radical. It is commonly found in organic chemistry and plays an important role in many reactions.

IUPAC names for the given compounds are:1.1. N: Nitrogen

The IUPAC name of N is nitrogen.

It is a non-metal and belongs to group 15 in the periodic table. It has an electronic configuration of 1s2 2s2 2p3.1.2. NO2: Nitrogen dioxide

Explanation: NO2 is a chemical compound that is formed by the combination of nitrogen and oxygen. It is a reddish-brown gas that has a pungent odor.

The IUPAC name of NO2 is nitrogen dioxide.1.3. O: Oxygen

Explanation: The IUPAC name of O is oxygen.

It is a non-metal and belongs to group 16 in the periodic table. It has an electronic configuration of 1s2 2s2 2p4.

X: UnknownExplanation: No IUPAC name can be given to an unknown compound as the structure and composition are not known.

Y: Hydroxyl Explanation: The IUPAC name of OH is hydroxyl.

It is a functional group that is composed of an oxygen atom and a hydrogen atom (-OH). It is commonly found in alcohols and phenols. ·0: RadicalExplanation: A radical is a molecule or an ion that contains an unpaired electron.

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Note: The complete question is given below

Provide the IUPAC names for the following compounds:

\(CH_3CH_2CH(CH_3)CH_2CH_2CH_2CH_3\)

C6H5CH(CH3)2

H2NCH2CH2CH2CH2CH2NH2

CH3CH2CH2CH2CH2OH

CH3CH2CH2CHOHCH3

Mendel's first generation pea plants with purple flowers would have had two alleles for flower color.

Alleles are different versions or variants of a gene that occupy the same position, or locus, on a chromosome. Each individual inherits two alleles for each gene, one from each parent, which can be either the same (homozygous) or different (heterozygous). These alleles can have different effects on the organism's phenotype (observable trait) and can be dominant or recessive, with dominant alleles masking the expression of recessive ones. For example, in humans, the gene for eye color has different alleles that produce different colors such as brown, blue, or green. The specific combination of alleles that an individual inherits determines their genotype, which in turn influences their phenotype. The study of alleles and their inheritance patterns is a fundamental concept in genetics and has important applications in fields such as medicine, agriculture, and evolutionary biology.

Here,

However, the specific alleles cannot be determined from this information alone. According to Mendel's laws of inheritance, each individual inherits two alleles for each trait, one from each parent. These alleles can be either the same (homozygous) or different (heterozygous). If the two alleles are different, one may be dominant and determine the organism's phenotype (observable trait), while the other may be recessive and not expressed in the phenotype. In the case of Mendel's purple-flowered pea plants, the specific alleles responsible for the purple flower color would have been determined through further experimentation and analysis.

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The reason behind this is that

There are various kind of reaction like combustion reaction, displacement reaction. So to solve this problem we must be knowing the displacement reaction. Displacement reaction is taking place over here

Displacement reaction is a reaction in which one atom replaces other atom from a molecule on the basis of reactivity strength. The element which on the top of reactivity series displace the element that is lying below to that reactive element

According to our question the balanced equation is

FeSO₄+Zn\(\rightarrow\) ZnSO₄+Fe(II)

Fe(NO₃)₂+Zn   \(\rightarrow\)   Zn(NO₃)₂+Fe(II)

In both reaction Zn is more reactive than Fe(II) and Fe(III) that is why Zn replace or displace iron ion from its compound of sulfate and nitrate. Metal displace metals. anions are displaced by anions. So, here metal is displaced by zinc.

Thus we can conclude that zinc is more reactive than iron Fe(II) and Fe(III). Displacement reaction is taking place over here

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Answer:

Na3N

Explanation:

cuzdoodlikeimsosure

Step 1 - What is a period?

There are two main divisions in the periodic table: groups and periods. Groups are vertically organized, whereas periods are horizontally organized.

As we can see in the picture bellow, families are named by numbers ranging from 1 to 18. Periods are named by numbers as well, going from 1 to 7.

Step 2 - Locating Boron in the periodic table

Boron has atomic number 5. It is located in the 13th group and 2nd period.

Answer:

A

Explanation:

An element is a substance, made up of atoms of the same substance and has independent existence. An element cannot be broken up by physical or chemical processes.

If we look at the images closely, image A represents a substance made up of the same kind of atoms. All the balls are exactly of the same colour and type, hence the answer.

Answer: c????????

Explanation:

Answer:

Atoms can be neither created nor destroyed in chemical reactions.

Answer:

Inertia of motion is the property of a body that opposes any change in it's speed or direction when it is moving.

Answer:

1) 37100000

2) 330000000

Explanation:

1) 3.7 x 10^7 = 37100000

2) 3.30 x 10^8 = 330000000

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The volume of 5.50 moles of CO2 at STP is 120.02 liters.

To calculate the volume of 5.50 moles of CO2 at standard temperature and pressure (STP), we need to use the ideal gas law:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

At STP, the pressure is 1 atmosphere (atm) and the temperature is 273.15 Kelvin (0 degrees Celsius). The gas constant is 0.08206 L•atm/mol•K.

So we can plug in the values and solve for V:

V = nRT/P = (5.50 mol)(0.08206 L•atm/mol•K)(273.15 K)/(1 atm) = 120.02 L

Therefore, the volume of 5.50 moles of CO2 at STP is 120.02 liters.

Standard temperature and pressure (STP) is a set of standard conditions used for measuring and comparing the properties of gases. STP is defined as a temperature of 273.15 Kelvin (0 degrees Celsius) and a pressure of 1 atmosphere (atm). These standard conditions allow scientists to compare the behavior of gases under the same set of conditions, making it easier to compare and contrast the properties of different gases.

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The number of moles is 123.2 moles

To find the volume of a substance from its number of moles, you will need to know its molar volume, which is the volume occupied by one mole of a substance. The molar volume can vary depending on the temperature and pressure, so you will need to specify these conditions.

The formula to calculate the volume of a substance from its number of moles is:

Volume = Number of moles x Molar volume

We know that;

1 mole occupies 22.4 L

5.5 moles occupies 5.5 moles  * 22.4 L/1 mole

= 123.2 moles

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Answer:

Adenitis: Inflammation of a lymph gland. From the aden-, gland + -itis, inflammation.

Inflammation of the gland can be defined by the term adenitis. Thus, option c is correct.

Inflammation is the body's immune response to an infection or an injury. This causes the white blood cells (leukocytes) of the body to move to the affected area or the tissue and results in swelling and redness.

The hardening of the gland is defined by adenosclerosis, the benign tumor of the glands is referred to as adenoma, whereas, cancer of the glands is referred to as adenocarcinoma.

In the word, adenitis, aden- is used to refer to the glands, and -itis defines inflammation. Hence, adenitis is used to define the inflammation of the glandular region.

Therefore, option c. adenitis is referred to as inflammation of the glands.

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The volume occupied at 25 °C. Remember to convert between °C and K. V2 = 3.311 L is the correct answer.

What is volume?

Volume is a measure of the amount of space occupied by an object, or the amount of matter contained within it. It is measured in units such as cubic metres, cubic centimetres, litres, millilitres, etc. Volume is a three-dimensional concept, meaning that it requires three measurements to be taken in order to accurately measure the amount of space an object occupies. The volume of a solid object can be determined by applying the formula V = l x w x h, where l is the length, w is the width, and h is the height of the object. For a liquid or gas, the volume is calculated by measuring its mass and the density of the substance. Volume can also be used to describe the total amount of space something occupies, such as the volume of a room or the volume of a storage container.

Temperature and Volume equation

Given,

The volume at -12°C = 2.90L

Temperature, T1 = -12°C

= (-12°C + 273)

= 261K

And, Volume at 25°C = ?

(25°C + 273)K

= 298K

Now, by using this equation:-

V1/T1 = V2/T2

V2 = V1 x T2/T1

V2 = 2.90L x 298K/261K

V2 = 3.311L

Hence, The volume at  25°C will be 3.311L

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The reaction quotient will be half of the equilibrium constant  of the system.

The term equilibrium constant refers to a number that shows the extent to which reactants are converted to products when the reaction has attained equilibrium. If the system is not at equilibrium, the number is called the reaction quotient.

If the reaction system is diluted to about twice its original volume, it follows that the reaction quotient will be halved with respect to the equilibrium constant hence the most likely value of the equilibrium constant is about half of the equilibrium constant.

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Answer:

Q = K/4, and the rate of the forward reaction will be greater than the rate of the reverse reaction.

Explanation:

with dilution, all the concentrations in the  expression are halved, and Qc=1/2[H3O+]×1/2[Cl−]×1/2[HOCl]/   1/2[Cl2]=Kc4

. Because Qc<Kc

, the rate of the forward reaction will be greater than the rate of the reverse reaction until equilibrium is reestablished.

Answer:

0.712 mol

Explanation:

The easiest way to do this is to use a proportion.

1 mol of copper = 63.5 grams (check this using your periodic table).

x mol of copper = 45.2 grams

1/x = 63.5 / 45.2              Cross multiply

63.5 x = 1 * 45.2              Divide by 63.5

x = 45.2/63.5

x = 0.712 mol                   Answer to 3 sig digs

Answer:

tetrahedral geometry

Explanation:

There are several centers of interest. Each carbon with all single bonds is the center of a tetrahedral geometry.

At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

1: Write the balanced chemical equation:

\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)

2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.

Initial:

\(C_O\)(g) = 0.3500 mol

\(Cl_2\)(g) = 0.05500 mol

\(C_OCl_2\)(g) = 0 mol

Change:

\(C_O\)(g) = -x

\(Cl_2\)(g) = -x

\(C_OCl_2\)(g) = +x

Equilibrium:

\(C_O\)(g) = 0.3500 - x mol

\(Cl_2\)(g) = 0.05500 - x mol

\(C_OCl_2\)(g) = x mol

3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:

Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]

4: Substitute the given equilibrium constant (Kc) value into the expression:

1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)

5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:

1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x

6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.

7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.

8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):

\(Cl_2\)(g) = 0.05500 - x

9: Calculate the value of \(Cl_2\)(g) at equilibrium:

\(Cl_2\)(g) = 0.05500 - x

\(Cl_2\)(g) = 0.05500 - (positive value of x)

10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.

Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

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Answer:

There is no graph

Explanation:

K and Br

Ionic bonds form through the transfer of electrons.

Ionic Bonds

Ionic bonds form when 2 atoms or molecules transfer electrons between each other. This transfer of electrons changes the atoms into ions. Ions are charged particles, and where ionic bonds get their name from. In an ionic bond, one atom will lose electrons and become positively charged; this particle is known as a cation. The atom that gains electrons and becomes negatively charged is known as an anion.

Identifying Ionic Bonds

One of the easiest ways to identify an ionic bond is by identifying the types of atoms that are bonding. In most cases, when a metal and nonmetal bond, an ionic bond will form. This is due to the large difference in electronegativity between metals and nonmetals. This leads to the metal being a cation and the nonmetal being an anion. Since K (potassium) is a metal and Br (bromine) is a nonmental, they will form an ionic bond.

To find metals and nonmetals we can look at the periodic table. Metals are on the left side of the table and make up the majority of the elements. Nonmetals are on the right side of the table.

Answer:

The balance reaction is

2Pb(NO3)2 ----》4NO2+2PbO+O2

hence the value of a,b,c,d are 2,4,2,1 respectively!

Answer:

0.200 M

Explanation:

Begin by finding how many moles of KCl there are by using the molarity and given volume:

\(\frac{0.600 mol}{1000 mL} x \frac{200.0 mL}{1} = 0.12 mol KCl\)

(Remember that molarity is mol/L, which is equal to mol/1000 mL.)

Next, divide the moles of KCl by the new volume (after dilution):

\(\frac{0.12 mol KCl}{600.0 mL} x \frac{1000 mL}{1 L} = \frac{0.200 mol KCl}{1 L} = 0.200 M\)

The new concentration is 0.200 M.

The new concentration of the KCL solution is 0.200M

HOW TO CALCULATE CONCENTRATION:

C1V1 = C2V2

Where;

C1 = initial concentration of the solution

C2 = final concentration of the solution

V1 = initial volume of the solution

V2 = final volume of the solution

V1 = 200mL

V2 = 600mL

C1 = 0.600 M

C2 = ?

C2 = C1V1 ÷ V2

C2 = (0.600 × 200) ÷ 600

C2 = 120 ÷ 600

C2 = 0.2M

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