The asphalt in the la brea tar pits is composed of hydrocarbons, but is not considered a fossil fuel. please select the best answer from the choices provided t f

Glass is known to be a good insulator because atoms in glass hold on tightly to their positively charged particles , Option D is the correct answer.

What is an insulator ?

Insulators are those substances that do not conduct heat or electricity like their conductor counterparts.

Conduction of electric charges is as a result of the free flow of electrons in the atom of the substance.

Hence, a good insulator holds on tightly to its electrons and prevent them from flowing freely to conduct electric charges.

Therefore, Glass is known to be a good insulator because atoms in glass hold on tightly to their positively charged particles.

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B. Atoms in glass hold tightly to their negatively charged particles

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Answer:

C

Explanation:

These particles are attracted to the ground with opposite charges that they form lightning (That's the best way I could explain it )

Answer:

c. charged particles colliding with earth’s magnetic field

Explanation:

Lightning is caused by

charged particles colliding with earth’s magnetic field

its not ,b or a, nor ,c &,d

Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves. Most lightning occurs within the clouds. What causes lightning?

So, do thunderclouds have rubber shoes? Not exactly, but there is a lot of shuffling going on inside the cloud and there's alot on the lighting that tower .

The mass of the N₂O in the given question is 92.4g.

STEP1- Apply the ideal gas equation

            PV=nRT

STEP2- Put the given values in the equation

            P=130kPa,     T=298K,     V=40L  R=8.31

STEP3- Solve the equation

           N=PV/RT,

           N=130×40/8.31×298

             N=2.1moles

             N=mass/molecular mass

             mass=2.1×44

            mass = 92.4g

Hence, the mass of N₂O is 92.4g.

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The equilibrium constant equation for the reaction of ammonia , a weak base, with water is K=[NH₄⁺][OH⁻] / [NH₃].

Equilibrium constant is a number that expresses the connection between the quantity of products and reactants present at equilibrium in a reversible chemical reaction.

Given chemical reaction is:

NH₃(aq) + H₂O(l) ⇄ NH₄⁺(aq) + OH⁻(aq)

Equilibrium constant equation for the above reaction will be represent as:

K = [NH₄⁺][OH⁻] / [NH₃]

As value of pure water is 1 for the above equation.

Hence equilibrium constant equation for the reaction of ammonia is K=[NH₄⁺][OH⁻] / [NH₃].

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The oxidation reaction is the chemical reaction in which the species loses electrons. The five oxidized ethanedioic acid molecules will produce 8 water molecules. Thus, option B is correct.

Half reaction equations are the representation of the reduction and the oxidation half of the whole reaction that denotes the gaining and losing of electrons differently.

The oxidation half of the reaction is given as:

HO₂CCO₂H → 2CO₂ + 2H⁺ + 2e⁻

The reduction half of the reaction will be given as:

MnO₄ + H⁺ → Mn²⁺ + H₂O

The overall reaction is written as:

C₂O₄ ⁻² + MnO₄⁻ + H⁺ →  CO₂ + H₂O + Mn²⁺

Here electrons are lost in the formation of carbon dioxide and electrons are gained when manganese is produced.

The total reaction is given as:

5 C₂O₄ ²⁻ + 2MnO₄ ⁻ + 16H⁺ → 10CO₂ + 8 H₂O + 2 Mn²⁺

Therefore, option B. five ethanedioic acid molecules produce 8 water molecules.

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Answer:

The correct answer is 547

The total mass of the product will be 137 grams.

From the equation of the reaction:

[tex]Zn + 2HCl --- > ZnCl_2 + H_2[/tex]

Mole of 130 grams of Zn = 130/65 = 2 moles

Equivalent mole of [tex]ZnCl_2[/tex] = 1 mole = 1 x135 = 135 grams

Equivalent mole of [tex]H_2[/tex] = 1 mole = 1 x 2 = 2 grams

Total mass of the products = 135 + 2 = 137 grams.

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The generic outer electron configuration for the noble gases is ns₂ np₆. All noble gases have fully completely shell.

Noble gases are all monatomic gases, which all are odorless and colorless with very less reactivity.

All noble gases have completely filled s and p orbitals.

Generally, S orbital contain 5 electrons and p orbital contain 6 electrons

Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn) are all noble gases.

Thus, the generic outer electron configuration for the noble gases is ns₂ np₆.

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The pH of a solution with [H₃O⁺] = 2.3 × 10⁻⁴M is 3.64 means the solution is acidic in nature.

pH of any solution is define as the negative logarithm of the concentration of hydronium ion as:

pH = -log[H⁺]

Given that concentration of H₃O⁺ or H⁺ = 2.3 × 10⁻⁴M

On putting values, we get

pH = -log(2.3 × 10⁻⁴)

pH = -(-3.64) = 3.64

Hence required pH value is 3.64.

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The concentration of the silver nitrate solution is 1.86 moles/dm³ .

The concentration of a substance is the quantity of solute present in a given quantity of solution.

2AgNO₃(aq)+Ca(s)→Ca(NO₃)₂(aq)+2Ag(s)

0.201 g of Silver = 0.201/107.8 = 0.00186 moles

From the equation we can see that for 2 moles of Silver to form we need 2 moles of silver nitrate .

For 0.00186 moles we will need 0.00186 moles of Silver nitrate

The concentration of the solution can be determined as

Molarity = moles / L of solution = 0.00186 moles/l

or 0.00186 moles/cu.cm = 1.86 moles/dm³

Therefore the concentration of the silver nitrate solution is 1.86 moles/dm³ .

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Answer:

yeah.. u cant only if heated the iced tea, breaking the sugar cube up has no effect on the dissolving process.

Answer:

A hydrocarbon containing a carbon - carbon double bond.

Explanation:

Alkene is hydrocarbon containing a

carbon - carbon double bond.

( Refer the attachment to understand more clearly )

An alkene is a hydrocarbon containing a carbon-carbon double bond and the correct option is option C.

Hydrocarbons are organic compounds that are entirely made up of only two kinds of atoms – carbon and hydrogen.

The carbon atoms join together to form the framework of the compound, and the hydrogen atoms attach to them in many different configurations.

Aliphatic hydrocarbons are divided into three main groups according to the types of bonds they contain: alkanes, alkenes, and alkynes.

Alkanes have only single bonds, alkenes contain a carbon-carbon double bond, and alkynes contain a carbon-carbon triple bond.

Therefore, An alkene is a hydrocarbon containing a carbon-carbon double bond and the correct option is option C.

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Answer:

they are opposite in function

Explanation:

voltaic cell converts chemical energy to electrical energy through redox reactions i.e reduction-oxidation reaction while the electrolytic cell converts chemical energy to electrical energy.

Answer:

P₁V₁=P₂V₂

29.3 * 28.8 = 16.5* V₂

V₂ = 51.14 L

Answer:

Yes

Explanation:

Dissolving makes what is being dissolved and makes it mix with the water no longer holding its original shape. Dissolving may also change the color or texture of the liquid it is dissolved in. These are all physical changes.

Answer:

it would be 25% sorry if I'm wrong

Answer:

When a substance is added into a solution then its color will change with different kind of solution then such type of substance can be considered as indicator. . They can be synthetic as well as an olfactory indicator

Explanation:

Hope this helps!!!!!!!!

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Due to its position, an object has the ability to store energy. For instance, when a demolition machine's heavy ball is held in an elevated position, it is storing energy.

Potential energy is the name for this positional energy that has been stored. Similar to how a drawn bow can store energy due to its posture. There is no energy in the bow while it is in its normal position, or when not drawn.

The bow can yet store energy when its position is changed from its normal equilibrium position because of its position.

Potential energy is the name for this positional energy that has been stored. Potential energy is the energy of position that a thing has stored inside it.

Therefore, Due to its position, an object has the ability to store energy. For instance, when a demolition machine's heavy ball is held in an elevated position, it is storing energy.

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Answer:

divide the number of moles of NaCl by the volume of the solution. In this case that is 0.32 moles, NaCl split by 3.4 L gives 0.094 M NaCl.

The reaction of acids with alkalis or bases forming salts is called neutralization reaction. Neutralization reaction remove the acidity or basicity of the substance.

There are various kinds of reaction namely substitution reactions, displacement reactions, combination reaction, neutralization reactions, oxidation etc.

Neutralization reactions are those where, an acid neutralizes a base or vice versa. The product obtained will be neutral thus having no acidity or basicity as the name suggests.

For instance when HCl reacts with the base NaOH, the salt NaCl is formed which is neutral thus having the pH value of 7. Similarly, Acetic acid and KOH reacts together to form potassium salt of acetic acid or potassium acetate. These are all neutralization reactions.

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Answer:

2.25 M     <========= I do not see this in your selection of answers !

Explanation:

Mole weight of  Li F

      ( from periodic table ) = 6.94 + 18.998  = 25.938 gm/mole

56 gm / ( 25.938 gm /mole) = 2.15899 moles

2.15899 mole / (.959) L = 2.25 M

Fire is a risk in all commercial kitchens. Open flames, grease, poor house-keeping practices, electrical hazards and flammable materials are common causes of restaurant fires.

What is an accidental fire?

Accidental fires are those in which the proven cause does not involve any deliberate human act to ignite or spread the fire.

Open flames, grease, poor house-keeping practices, electrical hazards and flammable materials are common causes of restaurant fires. Employers must implement effective administrative controls to protect employees and the business from the dangers of fire.

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Answer:

2.05 i think sorry if im wrong

Explanation:

Answer:

without density, we wont be able to determine what substance will float

Answer:

a: the hair dye

b: the change in color of her hair

c: the same amount of hair for both dyes and the same amount of dye

Explanation:

Answer:

but-1-ene

Explanation:

Solving :

⇒ 4 carbon atoms (but-)

⇒ One double bond (-ene)

⇒ Bond is present on the 1st carbon atom

Hence, the IUPAC name is :

but-1-ene

Answer: The circulation around the Hadley cells

Explanation:

The world's deserts are typically found at 30°N and 30°S latitudes because of the circulations around the Hadley cells. Thus, the correct option is B.

Within each cell, the air moves in a circular motion. Taking the Hadley cell, the warm air at the equator (0° latitude) rises and then cools down in the upper atmosphere, and then circles back down towards the tropics of around 30° latitude.

As the air leaves equator, it rains away more moisture, becoming denser and slightly cooler in temperature, until it finally dry, sinks, and creates the arid bands where many of the world's famous deserts lie. This giant atmospheric conveyor belt, is called a Hadley cell, brings both the tropical rain forests and deserts.

Therefore, the correct option is B.

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Answer:

D

Explanation:

This question is a little strange. C and D are very similar, but I would pick D.

Fluorine actually has the highest electronegativity of all the elements. This allows it to pull more electrons towards itself. Since electrons have a negative charge, this causes the fluorine end of the molecule to be more negative while the hydrogen is left striped of electrons and has it positively charged necleus exposed. This means that one end of the molecule is positive while the other is negative, which makes this molecule polar. The only reason I would pick D over C is that D addresses the second part of the question about the covalent bond. A covalent bond is simply when two atoms share electrons.

Let me know if this was right and I hope it helps.

Answer:

2

Explanation:

2 balances out the equation