what is Metallic Characteristics

Answer:

it's thermal energy

Explanation:

There are five types of kinetic energy: radiant, thermal, sound, electrical and mechanical.

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In this exercise we have to use the knowledge of kinetic energy and we can also describe it as a thermal energy.

Kinetic energy is a type of energy that is related to the movement of bodies. The result of kinetic energy is intrinsically linked to the value of the object's mass and its speed of movement.

Kinetic energy does not depend exclusively on the speed of a body but also on its mass. Any type of body in motion is endowed with this type of energy: translation, rotation, vibration and others.

With these definitions we can write that it will be the same as saying that kinetic energy can be transformed into thermal energy.

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Answer:

Animal remains are most likely to be fossilized if their hard parts are covered by layers of sediments soon after death. With time and pressure, these sediments, such as sand, plant debris, or ash, become compressed into rock. Therefore, fossils are found in sedimentary rock, like sandstone, shale, limestone and coal.

Explanation:

The name of the compound made of magnesium and fluorine is magnesium fluoride and its formula is MgF2. Magnesium fluoride is a white crystalline solid that has a bitter taste and is insoluble in water. Magnesium fluoride is a stable ionic compound with a high melting point.

This compound is the primary source of magnesium and fluoride ions in many industrial and chemical processes. Magnesium fluoride is produced by the reaction between magnesium oxide and hydrogen fluoride.

MgO + 2HF → MgF2 + H2O

In the laboratory, magnesium fluoride is produced by dissolving magnesium hydroxide in hydrofluoric acid.

Mg(OH)2 + 2HF → MgF2 + 2H2O

Magnesium fluoride is used in the production of ceramics and glass as a flux and to increase the resistance of the glass to attack by acids. Magnesium fluoride is also used as an optical coating on lenses and other optical components as it has a low refractive index.

Magnesium fluoride is a white crystalline solid with a bitter taste that is insoluble in water. It is the primary source of magnesium and fluoride ions in many industrial and chemical processes. The formula of magnesium fluoride is MgF2. It is used in the production of ceramics and glass as a flux and to increase the resistance of the glass to attack by acids. Magnesium fluoride is also used as an optical coating on lenses and other optical components as it has a low refractive index.

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Alkyl bromides are created when an alkene and HBr interact in the presence of factors such as heat, sunshine, or peroxides. A radical intermediate is used in this reaction to progress.

What is Alkene?

Alkenes, and ethene in particular, play a crucial role in the chemical industry. They are created during the cracking of the alkanes but are not present in significant amounts in crude oil. Like all hydrocarbons, alkenes burn in the presence of air to produce carbon dioxide and water. Ethene reacts violently in oxygen, making it ineffective as a fuel. Additionally, the alkenes are too useful for the production of plastics and many other compounds to be used as fuels in the chemical industry.

Compound A reacts with HBr to produce 2-bromohexane as a byproduct. 1-Bromohexane is created when component an interacts with HBr and peroxide.

In the absence of light, the carbocation intermediate is used to add HBr. In the presence of light, the radical intermediate is used to add HBr.

The result of component B reacting with HBr is 1-bromo-1-methylcyclohexane. 1-Bromo-2-methylcyclohexane is produced via the reaction of component b with HBr and peroxide.

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Answer: The herbicide (weed killer) takes away a plant's ability to get carbon dioxide. This causes the plant to not be able to produce glucose a source of energy for the plants. Even if there are plenty of water, sunlight, and chloroplasts, the photosynthesis process won't be complete without carbon dioxide. Once in the soil, herbicides can suffer alteration in their structure and composition, due to the action of physical, chemical, and biological processes. This action on the herbicides is the one that will determine their activity and persistence in the soil. Plants damaged by soil sterilant herbicides are the least likely to recover. Plants that show signs of growing out of the problem will likely recover. Plants that appear to lose vigor may not. The survival of damaged plants can be increased by reducing other stresses.

The medication can treat people who have the disease described. According to the commercial, the drug has FDA approval to treat a condition whose symptoms are listed.

Additionally, the narrator notes that the medication only comes with a prescription and has 1% of the active substance. We can deduce from this information that the drug can effectively treat persons who have the condition generating these symptoms, but obtaining it requires a prescription. The commercial provides no support for the other possibilities.

Therefore, the correct option is D.

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Answer:

There are four significant figures

Explanation:

There are four digits within 32.06, 3, 2, 0, and 6. Significant figures are the number of digits included in a number (besides the 0 in 0.xxx), therefore, there are four significant figures :)

An insulated cup contains 75 g of water at 24 °C. A 26 g sample of metal at 82.25°C is added. The final temperature of the water and metal is 28.34°C. The specific heat of the metal is 0.972 J/ g°C.

Given that :

Mass of the metal = 26 g

The specific heat of the metal = ?

Initial temperature of the metal = 82.25°C

Equilibrium temperature = 28.34°C

Mass of the water = 75 g

Specific heat of water = 4.18 J/ g°C

Initial temperature of the water = 24 °C

The specific heat capacity is given as :

26 × c × ( 82.25 - 28.34) = 75 × 4.18 ( 28.34 - 24)

26 × c × 53.91 = 313.5  × 4.34

c = 0.972 J/ g°C

Thus, the specific heat capacity of metal is 0.972 J/ g°C.

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The formula for Lead(II) silicate is PbSiO3.

Lead(II) silicate is a ternary ionic compound consisting of three different elements: lead (Pb), silicon (Si), and oxygen (O).

The first element, lead (Pb), has a 2+ charge, meaning it has lost two electrons and has a net positive charge.

The second element, silicon (Si), has a 4+ charge, and the third element, oxygen (O), has a 2- charge. To form a neutral compound, the charges of the cations and anions must balance each other.

To determine the formula of Lead(II) silicate, we need to balance the charges of the cations and anions.

Since the lead ion has a 2+ charge and the silicate anion has a 2- charge, we need two lead ions to balance one silicate anion.

The silicate anion, SiO3, has one silicon atom and three oxygen atoms. The 4+ charge of the silicon ion balances the 2- charge of the three oxygen ions.

Therefore, the formula for Lead(II) silicate is PbSiO3.

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Being an acid, Sulfuric acid reacts with most bases to give its corresponding sulphate.

Sulfuric acid is a type of acid which is colorless oily liquid. Sulfuric acid is highly soluble in water and while dissolving it releases big amount of heat. Sulfuric acid is very acidic in nature that it will burn wood and most other organic matter on contact, but is unlikely to cause a fire. Density of this acid is 15 lb / gal.

Sulfuric acid is highly acidic in nature and due to this it is used in the cleaning of metals, removal of impurities from oil, manufacturing of chemicals.

Being an acid, sulfuric acid reacts with most of the bases to give its corresponding sulphate.

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Compound a is a primary amine compound b is a secondary amine compound c is a tertiary amine the common name for the amine d is ammonia

Amines are the organic compound that contain nitrogen atom with a lone pair and they are derived from ammonia means NH₃ in which one or more hydrogen atom is replaced by an alkyl or aryl group and they are known as alkylamines and arylamines

Primary amines are formed when one hydrogen atom in ammonia is substituted by an alkyl or aromatic group and secondary amine have two carbon bonded to the nitrogen and tertiary amines have the three carbon bonded to the nitrogen and ammonia is the gas made up of nitrogen and hydrogen

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Answer:

0.167 M NaOH

Explanation:

Answer:

0.167

Explanation:

The original volume that was occupied by the Fivonine gas is 318 mL.

According to the Boyle's law; as long as the temperature and volume of the gas remain constant, the law asserts that the pressure of a gas is inversely proportional to its volume, or that as volume falls, pressure increases, and vice versa.

We know that;

P1V1 = P2V2

Then;

P1 = 900 torr or 1.18 atm

P2 = 1.50 atm

V1 = ?

V2 = 250 mL

Then V1 = P2V2/P1

V1= 1.50 * 250/1.18

V1 = 318 mL

This is the original volume.

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The Pauli exclusion principle explains the periodic table by stating that no two electrons in an atom can have the same set of quantum numbers.

In more detail, the periodic table organizes elements based on their atomic number, which represents the number of protons in an atom's nucleus. Each element consists of a unique arrangement of electrons around the nucleus. The Pauli exclusion principle, formulated by Wolfgang Pauli, states that within an atom, no two electrons can have the same set of quantum numbers.

Quantum numbers describe various properties of electrons, such as their energy, orbital shape, and orientation. According to the principle, each electron must have a distinct combination of quantum numbers, including the principal quantum number (n), the azimuthal quantum number (l), the magnetic quantum number (m), and the spin quantum number (s). This means that in a given atom, electrons occupy different energy levels and subshells, contributing to the observed patterns in the periodic table. The principle helps explain the filling order of atomic orbitals and the organization of elements into periods and groups based on their electronic configurations. It also plays a crucial role in understanding chemical bonding and the properties of elements.

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a. 2Na Al 03

Equation must have the same number of each element on both sides of the equation.

Answer:

3.45618%

Explanation:

Percent Error = measured value - accepted value/ accepted value x 100

Measured Value: 10.95

Accepted Value: 11.342

Work:

\(\frac{10.95-11.342}{11.342} *100\)

\(\frac{-0.392}{11.342} *100\) = -3.45618

You cannot have a negative percentage. Therefore the answer is 3.45618%

Answer:

A pressure cooker works based on Bernoulli's Principle.

Explanation:

trust me u will get what I am saying

A pressure cooker is primarily based on the precept that with the growth in stress, the boiling factor of water increases. it really works by means of capturing the steam which will increase the pressure inside the vessel. due to a boom in pressure, the boiling point of water rises up.

Pressure cooking is the method of cooking meals beneath excessive stress steam, using water or a water-primarily based cooking liquid, in a sealed vessel known as a pressure cooker. Excessive pressure limits boiling, and creates higher cooking temperatures which cook meals far greater quickly.

A pressure cooker is based on the principle that boiling point of water will increase with the growth in pressure. It really works through shooting the steam that, as it builds up, will increase the strain within the vessel.

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Answer:

mf i was trying to

find out the same thing

Explanation:

The equilibrium of an acid-base reaction lies towards the side with the more stable conjugate base.

In an acid-base reaction, the equilibrium position is determined by the relative stability of the products, specifically the conjugate acid and conjugate base. The conjugate base is formed when an acid loses a proton, and the stability of the conjugate base influences the direction of the equilibrium. A more stable conjugate base is better able to accept a proton, leading to a higher concentration of the conjugate base in the equilibrium mixture.

This results in the equilibrium lying towards the side with the more stable conjugate base. The stability of the conjugate base can be influenced by factors such as resonance, electronegativity, and atomic size. The pKa value, which indicates the acidity of an acid, is not directly related to the direction of equilibrium. Instead, it provides information about the relative strength of acids, with lower pKa values indicating stronger acids.

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Answer:

It should be 28 degrees C

Explanation:

Answer:

28°C

Explanation:

Answer:

The Milky Way is a large barred spiral galaxy

Explanation: that has more than etc

Answer:

Filtration

explanation:

Filtration is a separation method used to separate out pure substances in mixtures comprised of particles—some of which are large enough in size to be captured with a porous material. Particle size can vary considerably, given the type of mixture. For instance, stream water is a mixture that contains naturally occurring biological organisms like bacteria, viruses, and protozoa. Some water filters can filter out bacteria, the length of which are on the order of 1 micron. Other mixtures, like soil, have relatively large particle sizes, which can be filtered through something like a coffee filter.

Answer:

Homogeneous

Explanation:

Pure substances are untouched substances.

Homogeneous mixtures are in uniform.

Heterogeneous mixtures are un-uniform.

Explanation:

n=,4.5 moles C2H6

the ratio 2:7

4.5:x

x=15.75 moles

Answer:

Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.

Answer:

Nitrogen (ii) oxide

Explanation:

To know the IUPAC name for NO, we shall determine the oxidation number of N in NO.

NOTE: The oxidation number of oxygen (O) is always – 2.

Thus the oxidation number of N in NO can be obtained as follow:

N + O = 0 (ground state)

N + (– 2) = 0

N – 2 = 0

Collect like terms

N = 0 + 2

N = +2

Thus, the oxidation number of Nitrogen (N) in NO is +2.

Therefore, the IUPAC name for NO is Nitrogen (ii) oxide

Answer:

nitrogen monoxide

Explanation:

for those taking quiz on edge

Answer:

The answer is:

B

Explanation:

The compound in Option B is Methane.

Methane is known to be a compound which has two elements, carbon and hydrogen. It has a central atom which is surrounded by four hydrogen atoms. It's chemical formula is CH4.

Methane's outer atoms are dipoles and are in the same direction. This makes the overall molecule non-polar. The compound itself has non-polar bonds and it is non-polar itself.

Answer: Hormones are are the body's chemical messengers, sending signals into the bloodstream and tissues. Hormones work slowly, over time, and affect many different processes, including growth and development, metabolism – how your body gets energy from the foods you eat- sexual function, reproduction, and mood

The concentration of the unknown  \(H_{3} PO _{4}\) solution in the neutralization reaction is  4.11 × \(10^{-2}\) mol\(L^{- 1}\).

We are given the following neutralization reaction-

\(H_{3} PO _{4}\)( aq ) + 2 NaOH ( aq ) → \(Na_{2}HPO_{4}\) ( aq ) + 2 \(H_{2}O\)

Phosphoric acid is a diacid in an aqueous solution.

We have to find the concentration of the unknown  \(H_{3} PO _{4}\) solution in the given neutralization reaction.

Hence, the number of moles of NaOH = 26.28 × \(10^{-3}\) L × 0.100 mol  \(L^{- 1}\)

= 2.63 × \(10^{-3}\) mol

Thus, we have

the concentration \(H_{3} PO _{4}\) = 2.63 × \(10^{-3}\) mol × (1 /2) / 32.00 × \(10^{-3}\) L

                                           = 4.11 × \(10^{-2}\) mol\(L^{- 1}\).

Hence, the concentration of the unknown  \(H_{3} PO _{4}\) solution in the neutralization reaction is  4.11 × \(10^{-2}\) mol\(L^{- 1}\).

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