Which statement describes what is happening at the plate boundary in this section of a tectonic map?


Two plates are sliding past each other.


Two continental plates are colliding.


An oceanic plate is subducting.


The seafloor is spreading.

Answer:

evaporation means the state of the water went from liquid to gas which is a physical change. the sugar is still in the beaker which means its chemical properties did not change.

Explanation:

Explanation:

(15 × 10^2) =1500.

(5.2 ×10^5)=520000.

(1500)+(520000).

=518500 .

Answer:

32

Explanation:

There cannot be more in a number than the number. Therefore, the answer has to be D, or 32.

Hope this helps! :)

The true statement is Most of the minerals in granite weather to clay except quartz.

So, the correct answer is A.

This is because quartz is a very hard and durable mineral that is resistant to weathering. Other minerals in granite, such as feldspar and mica, are more susceptible to weathering and break down into clay minerals over time.

This process is known as chemical weathering, where minerals are altered or dissolved by chemical reactions with water and other substances in the environment.

While some minerals may weather more quickly than others, the overall rate of weathering depends on a variety of factors such as climate, topography, and the composition of the rock.

Hence, the answer of the question is A.

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Glucoses and glucose derivatives capable of undergoing mutarotation include α-D-glucopyranose, β-D-glucopyranose, α-D-glucopyranoside, and β-D-glucopyranoside.

Mutarotation is the process where the specific rotation of a molecule changes due to the interconversion of its anomeric forms. α-D-glucopyranose and β-D-glucopyranose can undergo mutarotation as they are anomers of glucose, differing only in the orientation of the hydroxyl group at the anomeric carbon.

Similarly, α-D-glucopyranoside and β-D-glucopyranoside can also undergo mutarotation because they are derivatives of glucose in which a hydroxyl group of the anomeric carbon is replaced by a glycosidic bond to another group. These compounds can interconvert between their anomeric forms in aqueous solutions, thus leading to mutarotation.

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Answer:

velocity

Explanation:

The compounds that are polar are BrF3, CH3OH only as BrF3 has a net dipole moment resulting from the asymmetry of its trigonal bipyramidal geometry, while CH3OH is polar due to the asymmetry of its molecular geometry. The correct option is b).

The compound that is considered polar is the one with a net dipole moment. This dipole moment arises due to the unequal distribution of electrons within the molecule, leading to partial charges on different atoms.

Out of the given compounds, only CH3OH is polar. This is because it has a net dipole moment resulting from the difference in electronegativity between oxygen and carbon/hydrogen atoms. The oxygen atom in CH3OH has a partial negative charge, while the carbon and hydrogen atoms have partial positive charges.

The other compounds, CBr4, XeF2, SCl4, and BrF3, are all nonpolar. CBr4 and XeF2 have a symmetrical tetrahedral geometry, while SCl4 and BrF3 have a trigonal bipyramidal geometry, leading to a net dipole moment of zero.

Therefore, the correct answer is (b) BrF3, CH3OH only, as BrF3 has a net dipole moment resulting from the asymmetry of its trigonal bipyramidal geometry, while CH3OH is polar due to the asymmetry of its molecular geometry.

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Answer:

a) 2

b) 3

c) 5

d) 6

Explanation:

Answer:

Gas>Liquid>Solid

Explanation:In a gas state, molecules are allowed to move freelyand  rarely collide into nearby particles. In a liquid state, the molecules are contained within the liquid and occasionally bump into each other. now in a solid state the atoms arrange themselves into a structure that the atoms sit very tightly next to each other, sometimes vibarating

Answer:

six

Explanation:

This is kinda like      3  * (Fe + 2O + 2H)      which would be SIX hydrogen atoms  ( or 3 hydrogen molecules)

Answer

false

Explanation:

hope it helps.......

This is a false statement!

In the symbolic equation, chemical formulas are used instead of chemical names for reactants and products, while symbols are used to indicate the phase of each substance. It should be apparent that the chemical shorthand method is the quickest and clearest method for writing chemical equations.

The first step to finding the Ka of the acid HA is to write the equation for its ionization: The Ka of the acid HA is 2.8 × 10^-4

HA(aq) + H2O(l) ↔ A^-(aq) + H3O^+(aq)

The equilibrium expression for this reaction is:

Ka = [A^-][H3O^+] / [HA]

We know that the initial concentration of HA is 0.059 M, and the pH of the solution is 2.36. From the pH, we can find the concentration of H3O^+ using the equation:

pH = -log[H3O^+]

2.36 = -log[H3O^+]

[H3O^+] = 10^-2.36 = 4.06 × 10^-3 M

Since the acid HA is a weak acid, we can assume that the concentration of A^- is negligible compared to the concentration of HA. Therefore, we can assume that the concentration of HA is equal to its initial concentration of 0.059 M.

We can plug these values into the equilibrium expression for Ka:

Ka = [A^-][H3O^+] / [HA]

Ka = (0)(4.06 × 10^-3) / 0.059

Ka = 2.75 × 10^-4

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Answer:

Clearing Land for a highway

Explanation:

The other examples are that of naturally occurring disasters and most life in that region have ways to regrow and repopulate in the case of those disasters. While a highway is a manmade object and interrupts the environment to the point that the new animals will not know how to deal with it. That is also why there are a lot of dead deer are found on the side of the road when a new highway is built.

Clearing land for a highway would most likely cause an ecosystem to have the lowest biodiversity and population sizes 3 years later. Therefore, option D is correct.

Biodiversity refers to the variety of life that can be found in a given area, including animals, plants, fungi, and even microorganisms such as bacteria. Each of these species and organisms collaborate in ecosystems to maintain balance and support life, much like an intricate web.

Every one of these exists in delicate balance and lives and works together in ecosystems to sustain and support life on Earth.

Typically, three levels of biodiversity are discussed: genetic diversity, species diversity, and ecosystem diversity. Genetic diversity refers to the various genes found in all plants, animals, fungi, and microorganisms. It can occur both within and between species.

Thus, option D is correct.

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Answer:

13.04%

Explanation:

m/v = g/mL *100 = 3.26/25*100

Decene has a chemical formula of and has 75 isomers. In this example, all alkanes up to ten carbon atoms in length are meticulously listed starting with methane and proceeding in this manner.

A nuclide isomeric with one or more others is one of two or more molecules, radicals, or ions that have the same number of atoms of the same elements but differ in their structural arrangement and characteristics.

The isomers known as structural isomers have the same chemical formulae but have their atoms totally rearranged in a different order. These are molecules with the same type of molecular formula but various connectivities based on the order in which they are assembled.

Carbon chains have the potential to branch, these isomers are created. For instance, the chemical butane, C4H10, has two isomers. One of them has a "straight chain" of carbon atoms, whereas the other has a branched chain.

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Answer:

2 atoms

Explanation:

The reactants side is the left side of the arrow. Li represents lithium and there is a 2 next do it which indicates that there are 2 lithium particles or atoms

The specific heat of the metal is 241.05 J/kg°C

Specific heat capacity can be defined as the amount of heat required to raise a unit mass of metal through 1 °C

To calculate the specific heat capacity of the metal, we use the formula below.

Formula:

Where:

make c the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, the specific heat capacity of the metal is 241.05 J/kg°C.

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Answer:

products are copper and aluminium chloride

reactants are aluminium and copper chloride

Explanation:

products are formed at the end of a reaction

reactants are what's reacting to form the products ie the things at the start of the equation

The amount of energy required to raise the temperature of a 53.5 g sample of gold from 23.0 °C to 100.0 °C is 14.5 kJ. We will use the following formula for calculating the energy required to raise the temperature of a substance: Q = m × c × ΔTwhereQ = energy m = mass c = specific heat capacityΔT = change in temperature We are given: m = 53.5 g c = 0.0308 cal /g°CΔT = (100.0 - 23.0) = 77.0 °C (Note that we have converted the temperature difference from Celsius to Kelvin, as the unit of specific heat used in the formula is Joule per Kelvin.)

Now, we will substitute the given values into the formula and solve for Q:Q = 53.5 g × 0.0308 cal/g°C × 77.0°C= 123.93 cal

Next, we will convert the unit of energy from calories to kilojoules:1 cal = 4.184 J (definition)1 kJ = 1000 J

Therefore,1 cal = 4.184/1000 kJ1 cal = 0.004184 kJHence,123.93 cal = 123.93 × 0.004184 kJ = 0.518 kJ

Therefore, the amount of energy required to raise the temperature of the gold sample from 23.0°C to 100.0°C is 0.518 kJ (to three significant figures).

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Answer:

Work

Explanation:

Work is defined as the ability to use energy in one second and its SI unit is same as energy that is joule.

Work refers to the energy utilized to displace an object over a distance by an external force in one direction and in given time period which can be one second as well.

Hence, the correct answer is "work".

The gauge pressure of the oxygen in the tank in atmospheres is 11.46 atm.

The gauge pressure is given as the pressure relative to the ambient atmospheric pressure. The gauge pressure can be calculated as:

Gauge pressure = System pressure - Atmospheric pressure

The system pressure of the 35-liter tank with 18.3 moles oxygen is given as:

Pressure = moles * Rydberg constant * Temperature / Volume

Pressure = 18.3 moles * 0.08 L.atm.mol⁻¹.K⁻¹ * 298 K / 35 L

Pressure = 12.46 atm

The standard pressure is given as 1 atm.

Thus, the gauge pressure of the oxygen in the tank can be:

Gauge pressure = System pressure - Atmospheric pressure

Gauge pressure = 12.46 atm - 1 atm

Gauge pressure = 11.46 atm

The gauge pressure of the oxygen in the tank in atmospheres is 11.46 atm.

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Answer:

The answer is 8.31 atm.

Explanation:

Ideal Gas Law = PV = nRT
(where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.)

First, convert the temperature from Celsius to Kelvin:

25°C + 273.15 = 298.15 K

Next, plug in the known values into the Ideal Gas Law equation:

P * 35.0 L = 18.3 moles * 8.31 J/mol*K * 298.15 K

Finally, solve for P:

P = (18.3 moles * 8.31 J/mol*K * 298.15 K) / 35.0 L

The pressure is in units of joules per liter. To convert it to atmospheres, divide by the atmospheric pressure in joules per liter:

1 atm = 101,325 Pa = 101,325 J/m^3 = 101.325 kPa

P (in atm) = (18.3 moles * 8.31 J/mol*K * 298.15 K) / (35.0 L * 101.325 kPa)

= 8.31 atm

: PM2.5 is defined as the mass concentration of particles in the air less than or equal to 2.5 micrometers in diameter.Question 15: False, carbon dioxide (CO2) is not considered a criteria air pollutant.

Question 16: The closest answer is 50%, but the exact percentage is not provided in the question.Question 17: The term "photochemical smog" is most synonymous with ozone (O3), which is a criteria air pollutant.Question 18: True, attainment of ambient air quality standards requires that measured concentrations at all monitoring stations within an air district are below ambient air standards.

Question 14 asks about the definition of PM2.5. PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 micrometers. It represents the mass concentration of particles suspended in the air, which are small enough to be inhaled into the respiratory system and can have adverse health effects.

Question 15 states whether carbon dioxide (CO2) is a criteria air pollutant. Criteria air pollutants are a set of pollutants regulated by environmental agencies due to their detrimental impact on air quality and human health. However, carbon dioxide is not considered a criteria air pollutant because it does not directly cause harm to human health or the environment in the same way as pollutants like ozone or particulate matter.

Question 16 asks about the percentage of carbon monoxide (CO) emissions from mobile sources in Santa Clara County. While the exact percentage is not provided in the question, the closest answer option is 50%. However, it is important to note that the precise percentage may vary depending on specific local conditions and emissions sources.

Question 17 inquires about the criteria air pollutant most synonymous with the term "photochemical smog." Photochemical smog is primarily associated with high levels of ground-level ozone (O3). Ozone is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight, creating a hazy and polluted atmospheric condition.

Question 18 addresses the concept of "attainment" of ambient air quality standards. To achieve attainment, measured concentrations of pollutants at all monitoring stations within an air district must be below the established ambient air quality standards. This ensures that the air quality in the given area meets the required standards for protecting human health and the environment.

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The initial temperature (c) of a system that has pressure decreased by 10 times while the volume increased by 5 times with a final temperature of 150k is 300K .

Temperature is a measure of the average kinetic energy of particles in a system. It is used to characterize the degree of hotness or coldness of a material or object. Temperature is expressed in units of degrees Celsius (°C), Kelvin (K), and Fahrenheit (°F). Temperature is an important physical quantity that plays a major role in determining the physical properties of a system. It can affect the pressure, volume, density, and viscosity of a substance.

The initial temperature (T1) of the system can be calculated using the ideal gas law, which states that PV = nRT, where P is pressure, V is volume, n is the number of moles, and R is the ideal gas constant.

To calculate T1, we rearrange the equation to T = (PV/nR).

Since the pressure decreased by 10 times and the volume increased by 5 times, we can calculate the new P and V values. P2 = P1/10 and V2 = V1*5.

We can then plug these values into the equation and solve for T1.

T1 = (P1V1/nR) * (10/5)

T1 = 150K * (10/5)

T1 = 300K

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..................................(0.<)................................

To estimate the deltaH for the reaction we can do it from the bond energies, that is, starting from the energy needed to form or break a bond.

The reaction energy will be equal to the binding energy of the reactants minus the binding energy of the products. To calculate each bond energy we must first identify which bonds are involved in the reaction. They give us a balanced reaction:

For the reaction, we have the following bonds

Now we are going to calculate the energy taking into account the values that we can find in tables of the bond energy.

Bond Ee (kJ/mol)

H - H 436

O=O 499

O - H 460

Therefore the energy on each side of the reaction will be:

The reaction energy will be:

We have an exothermic reaction since the result is negative. This means that the energy of the products is greater than that of the reactants.

Now we will convert the energy units to kcal:

ΔH (kcal/mol) estimated of the reaction will be -112kcal/mol

The final concentration of [Ca2+] is 0.125 M.

The balanced chemical reaction for the reaction of calcium chloride and sulfuric acid is shown below.

\(CaCl_2 + H_{2}SO_{4}\) → \(CaSO_4 + 2HCl\)

\(CaCl_2 + 2H^{+} + SO_{4}^{2-}\) → \(Ca^{2+} +SO_{4}^{2-} + 2HCl\)

\(CaCl_2 + 2H^{+}\)→\(Ca^{2+} + 2HCl\)

First, let us solve for the number of moles of CaCl2 and H2SO4.

mol CaCl2 = (molarity CaCl2)*(volume CaCl2)

mol CaCl2 = (0.50 M)(100 mL)( 1 L/1000 mL)

mol CaCl2 = 0.05 mol

mol H2SO4 = (molarity H2SO4)*(volume H2SO4)

mol H2SO4 = (0.25 M)(100 mL)( 1 L/1000 mL)

mol H2SO4 = 0.025 mol

Then, solve for the mol of H+ using the molar ratio of H+ and H2SO4

mol H+ = 0.025 mol H2SO4 * ( 2 mol H+ / 1 mol H2SO4)

mol H+ = 0.05 mol H+

Determine the final concentration of Ca2+ based on its stoichiometric ratio with H+

mol Ca2+ = 0.05 mol H+ * (1 mol Ca2+ / 2 mol H+)

mol Ca2+ = 0.025 mol Ca2+

molarity Ca2+ = 0.025 mol Ca2+ / [(100 mL + 100 mL)* ( 1 L/1000 mL)]

molarity Ca2+= 0.125 M

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The basic chemical formula for all sugar monomers can be described as (CH₂O)n, where "n" represents the number of carbon atoms in the sugar molecule.

Glucose is the most prevalent natural monomer among sugars. Starch, cellulose, and glycogen combine to create polymers as a result of their linking. Many species rely on glucose as a critical source of energy.

This formula indicates that sugars are composed of carbon (C), hydrogen (H), and oxygen (O) atoms in a ratio of 1 ratio 2 ratio 1. The "n" value varies depending on the specific sugar monomer. For example monosaccharide, glucose, a common sugar monomer, has a chemical formula of C₆H₁₂O₆, where "n" is 6.

Therefore, the correct description of the basic chemical formula for all sugar monomers is (CH₂O)n.

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Answer:

mitochondria and chloroplasts both have prokaryotic ribososmes

Explanation:

Yes. All matter is made of atoms in some way. Even the smallest crumbs are made of quadrillions of atoms. The number of atoms is simply mind boggling.

1 quadrillion = 1,000,000,000,000,000

There are 15 zeros in that number. It might be better to express it as

1 quadrillion = 1.0 * 10^15

Scientific notation compacts large numbers such as this to make it more readable, and allow for faster writing.