what properties of aluminum make it particularly useful in drinking cars​

Answer:

it's is math that you can answer with your sister and your mother

Answer:

346 degrees because 326+20= 346

Carbonated water is used makes sprite a substitute for egg in baking

Carbonated water can add moisture to recipes, but it also works as a great leavening agent

What is carbonated water ?

Carbonated water (soda water, bottled water, sparkling water, club soda, gassed water, also known as bottled water in many places, especially in the United States as seltzer or seltzer water) contains dissolved carbon dioxide. It is also water containing gas. It is artificially injected under pressure or occurs by natural geological processes. Carbonation creates tiny bubbles, giving the water a carbonation quality. Common forms include sparkling natural mineral water, club soda, and commercial sparkling water.

Carbonated water can add moisture to recipes, but it also works as a great leavening agent. Carbonation traps air bubbles and makes the finished product light and fluffy. You can substitute 60 grams of sparkling water per egg. This alternative is great for cakes, cupcakes and quick breads

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Answer:magnetic attraction

Explanation:

It's C I just took the quiz mark me beainliest

Using thermodynamics

\(\\ \sf\longmapsto Q=mc∆T\)

\(\\ \sf\longmapsto Q=0.015(328)(4184)\)

\(\\ \sf\longmapsto Q=20585.28J\)

When a deep-sea diving mixture containing 4.0% oxygen and 96.0% helium is delivered at a total pressure of 8.5 atm, the partial pressure of oxygen can be calculated using Dalton's Law of Partial Pressure. According to this law, the total pressure of a mixture of gases is equal to the sum of the partial pressures of each gas in the mixture.

Therefore, we can calculate the partial pressure of oxygen by multiplying the total pressure by the fraction of oxygen in the mixture, which is 0.04.
Partial pressure of oxygen = Total pressure x Fraction of oxygen in the mixture
Partial pressure of oxygen = 8.5 atm x 0.04
Partial pressure of oxygen = 0.34 atm
Hence, the partial pressure of oxygen in the deep-sea diving mixture is 0.34 atm when delivered at a total pressure of 8.5 atm. This mixture is specifically designed for deep-sea diving because helium is less soluble in body tissues than nitrogen, which prevents the development of decompression sickness, also known as "the bends." By using a mixture with a high percentage of helium, divers can safely descend to great depths without experiencing adverse effects.

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Answer:

Fossil fuels release greenhouse gases and are non renewable

A reaction between sodium acetate, acetic acid, and sodium bicarbonate occurs. Carbon dioxide gas was produced when liquid vinegar was added to the solid baking soda.

Once the carbonic acid has broken down, water and carbon dioxide, or CO2, will be released. This results in 4.4 g of carbon dioxide being produced from the reaction of 8.4 g of sodium bicarbonate and 20 g of acetic acid.

In the reaction of 5 cm3 baking soda and 100 cm3 vinegar, 0.083 moles of CO2 gas and 0.083 moles of sodium acetate should be produced, whereas 0.01 moles of sodium bicarbonate should remain unreacted.

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The C₂H₅OH molecule belongs to the class of organic molecules known as alcohols.

Alcohols are organic compounds that contain one or more hydroxyl (-OH) functional groups attached to a carbon atom. The C₂H₅OH molecule, also known as ethanol or ethyl alcohol, has a hydroxyl group (-OH) attached to a two-carbon chain (ethyl group).

Alcohols are important in many biological and chemical processes, as they are involved in the metabolism of carbohydrates, lipids, and amino acids. They also have many practical applications, such as in the production of solvents, fuels, and alcoholic beverages.

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Complete question:

which class of molecule molecules C₂H₅OH would this molecule belong to (or would you classify it as)? explain why you classified this molecule in the way you did. (1 point)

\(\huge\purple{Hi!}\)

An atom is a complex arrangement of negatively charged electrons arranged in defined shells about a positively charged nucleus. This nucleus contains most of the atom's mass and is composed of protons and neutrons (except for common hydrogen which has only one proton). All atoms are roughly the same size. A convenient unit of length for measuring atomic sizes is the angstrom (Å), which is defined as 1 x 10-10 meters. The diameter of an atom is approximately 2-3 Å.

In 1897, J. J. Thomson discovered the existence of the electron, marking the beginning of modern atomic physics. The negatively charged electrons follow a random pattern within defined energy shells around the nucleus. Most properties of atoms are based on the number and arrangement of their electrons. The mass of an electron is 9.1 x 10-31 kilograms.

One of the two types of particles found in the nucleus is the proton. The existence of a positively charged particle, a proton, in the nucleus was proved by Sir Ernest Rutherford in 1919. The proton's charge is equal but opposite to the negative charge of the electron. The number of protons in the nucleus of an atom determines what kind of chemical element it is. A proton has a mass of 1.67 x 10-27 kilograms.

The neutron is the other type of particle found in the nucleus. It was discovered by a British physicist, Sir James Chadwick. The neutron carries no electrical charge and has the same mass as the proton. With a lack of electrical charge, the neutron is not repelled by the cloud of electrons or by the nucleus, making it a useful tool for probing the structure of the atom.

Even the individual protons and neutrons have internal structure, called quarks. Six types of quarks exist. These subatomic particles cannot be freed and studied in isolation. Current research continues into the structure of the atom.

Answer:

c

Explanation:

they spread farther apart as they lose their structure

The amount of usable energy needed for a chemical reaction to be completed is known as delta G, also known as change in Gibbs free energy.

The equation often yields free energy. Delta G is a measure of a system's change in Gibbs free energy. Free energy is defined as the system's change in enthalpy () less the sum of the system's temperature and change in entropy () changes.

The terms "G" and "G°" stand for the Gibbs energy change for a system under ideal conditions, respectively (1 atm, 298K). The energy difference between reactants and products is denoted by the symbol G on an energy.

Delta G is a measure of how a system's Gibbs free energy changes. The difference between the system's change in enthalpy and the sum of its temperature and change in entropy is known as free energy.

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The first three quantum numbers for electrons located in subshell 4s are :

Answer:

8.9L is the volume of the gas that must be dissolved.

Explanation:

For a weak base, we can find [(CH₃)₃N] using the equation:

Kb = [OH⁻] [[(CH₃)₃NH⁺] / [(CH₃)₃N]

As [OH⁻] = [[(CH₃)₃NH⁺] and [OH⁻] = 10^-pOH = 3.16x10⁻³M:

6.3x10⁻⁵ = [3.16x10⁻³M][3.16x10⁻³M] / [(CH₃)₃N]

[(CH₃)₃N] = 0.1587M

As the volume is 2.5L, moles are:

2.5L * (0.1587mol / L) = 0.3968moles

Using:

PV = nRT

We can solve for volume of the gas as follows:

P = 1atm at STP; n = 0.3968moles; R = 0.082atmL/molK; T = 273.15K at STP

V = 0.3968mol*0.082atmL/molK*273.15K/1atm

V = 8.9L is the volume of the gas that must be dissolved.

Answer:

Kinetic

Explanation:

The skeletal line-bond structure of (r)-1-ethyl-3-ethynyl-cyclohex-1-ene is as follows:

A disubstituted cyclohexene molecule contains an ethyl group on C1 and an ethynyl group on C3.

To represent the dash or wedge bond structure we have to first identify the asymmetric centers in the molecule.

An organic compound's skeletal structure was made up of a group of atoms that also are joined together to form the compound's fundamental structure. Chains, branches, and/or rings of bound atoms can make up the skeleton. Heteroatoms were skeletal atoms that are not carbon as well as hydrogen.

The asymmetric center in the cyclohexene molecule is C-3 in the cyclohexene so the dash and wedge structure can also be shown as follows:

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Answer:

Explanation:

Hydrogen lose electrons because of its electronegativity as it has only one electron so it is capable of losing that instead of gaining an electron due to its low electronegativity

Answer:

the answer is three protons

The correct answer is that the acid dissociation constant (Ka) for lactic acid is \(1.59 × 10^(-3)\) (to two significant figures).

Lactic acid is a weak acid that dissociates in water to produce hydrogen ions (H+) and lactate ions \((CH3CH(OH)COO-)\). The dissociation of lactic acid can be represented by the following equation: \(CH3CH(OH)COOH ⇌ H+ + CH3CH(OH)COO-\) . The equilibrium constant for this reaction is called the acid dissociation constant (Ka), which is defined as the ratio of the concentrations of the products (H+ and \(CH3CH(OH)COO-)\) to the concentration of the reactant (lactic acid).

\(Ka = [H+][CH3CH(OH)COO-]/[CH3CH(OH)COOH]\). The pH of a solution is defined as the negative logarithm (base 10) of the hydrogen ion concentration \((pH = -log[H+])\). Therefore, the concentration of hydrogen ions in a \(0.10 mM\) solution of lactic acid with a pH of 2.44 can be calculated as follows: \([H+] = 10^(-pH) = 10^(-2.44) = 3.98 × 10^(-3) M\)

Using the equilibrium equation and the hydrogen ion concentration, the acid dissociation constant (Ka) for lactic acid can be calculated as:

\(Ka = [H+][CH3CH(OH)COO-]/[CH3CH(OH)COOH] = (3.98 × 10^(-3))^2 / (0.10 × 10^(-3)) = 1.59 × 10^(-3)\)Therefore, the acid dissociation constant (Ka) for lactic acid is\(1.59 × 10^(-3)\) (to two significant figures).

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Answer:

Steam escapes from a teapot. Is a chemical reaction occurring? No, because liquid to gas would be a physical change, not a chemical change

Explanation:

Answer:

a) The predominant Brownstead-Lowry acid- base is perchloric acid

b) A conjugate acid base pair is HClO4 and ClO4^-

c) forward reaction is favored and equilibrium position lies towards the far right

Explanation:

The molecular equation is;

HClO4(aq) + NaH2PO4(aq) -----> H3PO4(aq) + NaClO4(aq)

The net ionic equation of the reaction is;

H^+(aq) + H2PO4^-(aq) ----> H3PO4(aq)

The predominant Brownstead-Lowry acid- base is perchloric acid .

A conjugate acid base pair is HClO4 and ClO4^-

Since the both species; perchloric acid and sodium dihydrogen phosphate are both highly soluble in water yielding ions and also dissociate to a large extent in solution, the forward reaction is favoured leading to the formation of phosphoric acid. Remember that phosphoric acid does not easily dissociate in solution hence the forward reaction is faster than the reverse reaction and the equilibrium position lies towards the far right.

Answer:

Option B.

Explanation:

Isotopy is a phenomenon where by two or more atoms have the same atomic number (proton) but different mass number due to the difference in neutron present in the atoms. The atoms that exhibit Isotopy are isotopes.

With the above information, we can obtain the right answer to the question given above as follow:

For option A:

Isotope >> atomic no >> Mass no

16 8X >>> 8 >>>>>>>>> 16

16 6X >>> 6 >>>>>>>>> 16

Since they have the different atomic number, they are not isotope.

For option B:

Isotope >> atomic no >> Mass no

16 8X >>> 8 >>>>>>>>> 16

17 8X >>> 8 >>>>>>>>> 17

Since they have the same atomic number but different mass number, they are isotope.

For option C:

Isotope >> atomic no >> Mass no

12 6X >>> 6 >>>>>>>>> 12

14 7X >>> 7 >>>>>>>>> 14

Since they have different atomic number, they are not isotope.

For option D:

Isotope >> atomic no >> Mass no

6 26X >> 26 >>>>>>>>> 6

26 6X >>> 6 >>>>>>>>> 26

Since they have different atomic number, they are not isotope.

From the above illustration, only option B contains isotopes because the atoms have the same atomic number but different mass number

Answer:

The tectonic style and viability of modern plate tectonics in the early Earth is still debated. Field observations and theoretical arguments both in favor and against the uniformitarian view of plate tectonics back until the Archean continue to accumulate. Here, we present the first numerical modeling results that address for a hotter Earth the viability of subduction, one of the main requirements for plate tectonics. A hotter mantle has mainly two effects: 1) viscosity is lower, and 2) more melt is produced, which in a plate tectonic setting will lead to a thicker oceanic crust and harzburgite layer. Although compositional buoyancy resulting from these thick crust and harzburgite might be a serious limitation for subduction initiation, our modeling results show that eclogitization significantly relaxes this limitation for a developed, ongoing subduction process. Furthermore, the lower viscosity leads to more frequent slab breakoff, and sometimes to crustal separation from the mantle lithosphere. Unlike earlier propositions, not compositional buoyancy considerations, but this lithospheric weakness could be the principle limitation to the viability of plate tectonics in a hotter Earth. These results suggest a new explanation for the absence of ultrahigh-pressure metamorphism (UHPM) and blueschists in most of the Precambrian: early slabs were not too buoyant, but too weak to provide a mechanism for UHPM and exhumation.

Explanation:

The reduced form of the thermal energy equation necessary for determining the temperature distribution throughout the liquid metal can be expressed as Q = ρcΔT/Δt, where Q represents the heat energy transferred, ρ denotes the density of the liquid metal, c represents the specific heat capacity, ΔT represents the change in temperature, and Δt denotes the change in time.

The thermal energy equation is a fundamental equation used to describe the transfer of heat energy in a system. In this case, for determining the temperature distribution throughout the liquid metal, the reduced form of the equation includes variables such as density (ρ), specific heat capacity (c), and the change in temperature (ΔT) with respect to time (Δt).

This equation allows for a quantitative analysis of how heat energy is transferred and distributed within the liquid metal, providing valuable insights into its thermal behavior.

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The expression to show how much longer the round trip to Las Vegas is than the trip is to Cheyenne is (1498 - 202) × 2 = difference in round trip distance.

This is an expression to show how much longer the round trip to Las Vegas is than the trip to Cheyenne:

1498 - 202 × 2 = difference in round trip distance

The expression has 3 terms:

1498 = distance to Las Vegas.

202 = distance to Cheyenne.

2 = number of times the distance is being calculated because it is a round trip.

The difference in round trip distance is 1294 miles.

This is another way to write the expression:

(1498 - 202) × 2 = difference in round trip distance

This expression is equivalent to the first expression, but it is written in a different way.

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