Banana slugs live on the ground in moist forests of the Pacific Northwest. They consume and break down a variety of materials, including small dead animals and rotting leaves. Which term describes banana slugs?
Group of answer choices

carnivores

consumers

decomposers

producers



PLEASE Answer This!!!

Answer:

Any material that exerts magnetic force is considered a magnet.

TRUE

Answer:

do that in calc

Explanation:

mass of cu = 63.55 ÷ 79.55 × 15.9

Answer:

A small mass of positive charge was discovered in the center of the atom.

Explanation:

Atoms is the combination of protons, neutrons, as well as electrons particles. The particles that are in the centre of atom is Protons and neutrons, which made up the nucleus, this nucleus is surrounded by electron.

The discovery that directly caused scientists to revise this model of the atom is that A small mass of positive charge known as proton, and a positive charge particle was discovered by Ernest Rutherford, in the center of the atom in the year 1900. Ernest Rutherford through his research resulted to splitting of the atom during nuclear reaction and proton was discovered.

Answer:

1) 5 kJ

2) 125 moles

3) 81.33 kJ

4) 135.9 grams

5) 15.165 kJ

6) 97.6 J

Explanation:

1) Molar mass of ice (water) = 18.015 g/mol

Number of moles, n, of ice = mass/(molar mass) = 15/18.015 = 0.833 moles

ΔHfus = 6.00 kJ/mol

Energy required, E = ΔHfus × n = 0.833 × 6 = 4.996 ≈ 5 kJ

2) Number of moles of ice that can be melted by E = 750 kJ is given by the equation;

n = E/(ΔHfus) = 750/6 = 125 moles

3) Given that ΔHvap = 40.7 kJ/mol, we have;

Number of moles of water, n = 36/18.015 = 1.998 ≈ 2 moles

Heat required = ΔHvap × n = 40.7 × 2 = 81.33kJ

4) Given that heat removed, ΔH= 307 kJ, we have;

n = ΔH/ΔHvap = 307/40.7 = 7.543 moles

Mass of water = Number of moles × Molar mass = 7.543 × 18.015 = 135.9 grams

5) Energy required, E for iodine to melt = Number of moles of iodine × ΔHfus of iodine

Number of moles of iodine = Mass of iodine/(Molar mass of iodine)

Number of moles of iodine = 248/126.9 = 1.954 moles

Energy required, E for iodine to melt = 1.954 × 7.76  = 15.165 kJ

6) Energy required, E for 4.24 g of lead to melt = Number of moles of lead × ΔHfus of lead

Number of moles of lead= Mass of lead/(Molar mass of lead)

Number of moles of iodine = 4.24/207.2 = 0.0205 moles

Energy required, E for iodine to melt = 0.0205 × 4.77 = 9.76 × 10⁻² kJ = 97.6 J.

Answer:

removing thermal energy will cause its particles to move more slowly and its temperature to drop

When thermal energy is removed from a substance the energy of the system will be low and particles of the substance will not move properly because of low energy.

Thermal energy is a type of energy that is mainly produced by the generation of the temperature as it is only responsible for the production of heat which is responsible for thermal energy production.

Energy provides the particles of a substance to move from one place to another place which is not possible without energy or heat or thermal energy and the process will not be complete.

Therefore, the energy of the system will be low and particles of the substance will not move properly because of the low energy When thermal energy is removed from a substance.

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The observation that gas particles are acting like tiny, solid spheres indicates that the kinetic-molecular theory has limited use for describing this particular gas. Option A.

The observation that indicates that the kinetic-molecular theory has limited use for describing a certain gas is "Gas particles are acting like tiny, solid spheres." According to the kinetic-molecular theory, gases are considered to consist of particles in constant, random motion.

These particles are assumed to be small and have negligible volume compared to the space they occupy. Additionally, they are not assumed to interact significantly with each other or exhibit any cohesive forces.

However, if the gas particles are behaving like tiny, solid spheres, it suggests that the assumptions of the kinetic-molecular theory may not hold true for this particular gas. Instead of exhibiting random motion and negligible volume, the gas particles are behaving more like solid particles with defined shapes and sizes.

The observation that gas particles are obeying Newton's laws of motion is in line with the principles of the kinetic-molecular theory. According to Newton's laws, gas particles should exhibit random motion, collide with each other and the container walls, and follow the laws of conservation of momentum and energy.

The observations related to increasing pressure reducing the volume of the gas and causing a smaller change in gas volume are consistent with Boyle's law, which is a fundamental principle of the kinetic-molecular theory. Boyle's law states that at constant temperature, the volume of a gas is inversely proportional to its pressure.

Therefore, these observations align with the expectations of the kinetic-molecular theory. Option A is correct.

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Answer:

The current of the toaster is 3.93A

Explanation:

Using the GRASS method:

G: Given: The information that is given is that we have 28Ω of Resistance and 110V of voltage.

R: Required: We need to find the current measured.

A: Action: We can use Ohm's law that relates resistance, voltage and current in the equation:

V = R*I

Or:

I = V/R

Where I is current in A, V is voltage = 110V and R is resistance = 28Ω

S: Solve:

I = 110V / 28Ω

I = 3.93A

S: Statement:

The pressure exerted by 0.750 mol of gas at a temperature of 0.00ºC and a volume of 5.00 L is 101325 Pa.

To calculate the pressure exerted by a gas, we can use the ideal gas law:

PV = nRT

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

First, we need to convert the temperature from Celsius to Kelvin:

T = 0.00ºC + 273.15 = 273.15 K

Next, we can plug in the given values and solve for the pressure:

P = nRT/V

P = (0.750 mol)(8.314 J/mol·K)(273.15 K)/(5.00 L)

P = 101325 Pa

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The correct answer is a) pH values < 7. Acids are substances that donate hydrogen ions (H+) when dissolved in water, which increases the concentration of H+ ions in the solution.

This excess of H+ ions causes the pH of the solution to decrease below 7, which is considered neutral. Therefore, solutions with pH values below 7 are acidic, while solutions with pH values above 7 are basic or alkaline.

Insolubility, lack of conductivity, and lack of reactivity with metals are not properties common to all acids. Some acids can be soluble in water, conduct electricity, or react with metals, depending on their specific chemical properties.

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Answer:

Concept of chemi-fluorescence

Explanation:

A glow stick usually consists of two chemicals in a larger plastic tube: , a base catalyst (mostly sodium salicylate), and a suitable dye (sensitizer, or fluorophor). This creates an exergonic reaction when mixed together.

When a glow stick is bent, the flurophor which is a chemical that easily re-emits light upon excitation in smaller capsules is released into the other substance, there by causing it to emit radiation/light in the uv-visible region. The brightness and longevity of the glow stick is determined by varying the concentration of these chemicals.

I hope this explanation clarifies things.

i cant understand your question define briefly

Answer:

false

Explanation:

I think it would help you out

Answer:

The forensic scientist must be able to tell the difference between the substances.

Explanation:

It is important for forensic scientists to be able to identify particular drugs so they have evidence for the case that a certain drug was present.

The goal of forensic drug chemistry is to determine whether the material submitted contains an illegal substance.

Answer:

correct answers:

objecting to a local and consent bill

chubbing

filibuster

incorrect answers:

amending legislation

vetoing legislation

Explanation:

Answer:

a. Determine the materials used to make the pots.

Explanation:

Workers digging a tunnel through a city who find some ancient pots decorated with geometric designs will employ the services of a chemist.

The chemist would help to determine the materials which were used to make the pots . This is usually done by various type of experiments and observations. After the constituent of the pot is gotten then more information would be derived from the possible source and use of the pot

Answer:

The skillet got rusted.

Explanation:

In the context, Kelly kept the iron skillet in the sink which is full of water. After washing the dishes, she noticed the skillet's color is starting to change. She kept it for dry on the rack but the day later the skillet was ruined and damaged.

It was a chemical and physical change in the property of the metal where the iron skillet which was kept in the sink full of water oxidized due to the water content and the iron got oxidized to form form iron oxide which is known as rust. It damages the utensil and the color changes to muddy red or brownish red.

Matter is anything that has mass and occupies space. Matter can exist in three forms or phases: solids, liquids, or gases.  A tiny particle of a chemical element is called an atom while Molecules refer to the group of atoms. Compounds can be broken down into elements by chemical reactions, but elements cannot be separated into simpler substances by chemical means.

Atoms are made up of three types of tiny particles. Protons (or positively charged particles) and neutrons (or particles that contain no charge) are found in the nucleus of an atom. Electrons (or negatively charged particles) are found outside the nucleus. A molecule can be defined as the combinations of two or more atoms which are held together by chemical bonds. A molecule is the smallest portion of a substance which showcases all the properties of the substance. If the molecule contains atoms of different types bonded together, we call it a compound. Element any substance that cannot be decomposed into simpler substances by ordinary chemical processes.

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Answer:

Adult musk oxen in a herd surround their young to protect them from wolves.

Answer:

D

Explanation:

Answer: Carbon Dioxide, Methane, Nitrous Oxide and Fuorinated Gases

Explanation:Carbon dioxide (CO2): Carbon dioxide enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), solid waste, trees and other biological materials, and also as a result of certain chemical reactions (e.g., manufacture of cement). Carbon dioxide is removed from the atmosphere (or "sequestered") when it is absorbed by plants as part of the biological carbon cycle.

Methane (CH4): Methane is emitted during the production and transport of coal, natural gas, and oil. Methane emissions also result from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills.

Nitrous oxide (N2O): Nitrous oxide is emitted during agricultural and industrial activities, combustion of fossil fuels and solid waste, as well as during treatment of wastewater.

Fluorinated gases: Hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride, and nitrogen trifluoride are synthetic, powerful greenhouse gases that are emitted from a variety of industrial processes. Fluorinated gases are sometimes used as substitutes for stratospheric ozone-depleting substances (e.g., chlorofluorocarbons, hydrochlorofluorocarbons, and halons). These gases are typically emitted in smaller quantities, but because they are potent greenhouse gases, they are sometimes referred to as High Global Warming Potential gases ("High GWP gases").

The equilibrium constant for this reaction is 0.096.

The equilibrium constant (Kc) for the following reaction is given by the ratio of the concentration of products to the concentration of reactants at equilibrium, with each concentration raised to the power of its coefficient in the balanced chemical equation:

a + b ⇌ c

Kc = [c]/([a][b])

At the beginning, the concentrations of a and b are 0.0420 M, and the concentration of c is 0 M. At equilibrium, the concentration of a is 0.0124 M. We can assume that the concentration of b at equilibrium is also 0.0124 M, since the stoichiometry of the reaction tells us that the ratio of a to b is 1:1.

Therefore, we can plug these values into the equilibrium constant expression:

Kc = [c]/([a][b]) = 0.0124^2 / (0.0420)(0.0420) = 0.096

So, the equilibrium constant for this reaction is 0.096.

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Answer:

an energy level represents the three dimensional space surrounding nucleus where electrons are most likely to be.

Explanation:

To determine the number of moles of water produced in the given reaction 2C8H18(g) + 25O2(g) → 16CO2(g) + 18H2O(g), we need to compare the stoichiometric coefficients of water (H2O) with the other reactants and products. From the balanced equation, it can be concluded that 18 moles of water are produced for every 2 moles of C8H18 consumed.

The balanced equation shows that for every 2 moles of C8H18 consumed, 18 moles of H2O are produced. This ratio is obtained by comparing the stoichiometric coefficients of water and C8H18 in the balanced equation.

Therefore, if we have a known amount of C8H18 and want to determine the corresponding moles of water produced, we can use the ratio:

moles of H2O = (moles of C8H18) x (18 moles of H2O / 2 moles of C8H18)

The ratio of 18 moles of H2O to 2 moles of C8H18 indicates that for every 2 moles of C8H18, 18 moles of H2O are produced in the reaction.

Using this ratio, you can calculate the number of moles of water produced by multiplying the number of moles of C8H18 by the ratio of 18 moles of H2O to 2 moles of C8H18.

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C8 columns refer to chromatography columns that contain a stationary phase consisting of hydrocarbon chains with eight carbon atoms. c8 columns means none of the given options. The correct answer is (d) None of the above.

C8 columns refer to chromatography columns that contain a stationary phase consisting of hydrocarbon chains with eight carbon atoms. These carbon chains are typically covalently bonded to a solid support material.

The C8 designation represents the length and composition of the hydrocarbon chains in the stationary phase.

These columns are commonly used in chromatography techniques, such as reversed-phase liquid chromatography, where nonpolar compounds are separated based on their interactions with the hydrophobic stationary phase.

The C8 stationary phase provides moderate retention for analytes with different polarities, allowing for effective separation.

The statement about ionic bonding or the presence of a phenyl group is not applicable to C8 columns.

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A sample of seawater has a mass of 158g and a volume of 156mL. its density is 1.012 g/mL.

According to the question the data are given is as follows:

volume of sea water  = 156 mL

mass of sea water = 158 g

density of sea water can be calculated by the following formula :

D = M / V

where,

D = density

M = mass of sample

V = volume of sample

substituting all the value in the given formula , we get :

D = 158 g / 156 mL = 1.012 g/mL

Density of seawater = 1.012 g / mL

Thus, A sample of seawater has a mass of 158g and a volume of 156mL. its density is 1.012 g/mL .

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To determine the empirical formula of the sample based on the given percentages of carbon, oxygen, and chlorine, we need to convert the percentages into moles and find the simplest whole number ratio between the elements.

Convert the percentages to moles:

Assume we have 100 grams of the sample.

Carbon (C): 12.12 grams (12.12% of 100g)

Oxygen (O): 16.17 grams (16.17% of 100g)

Chlorine (Cl): 71.71 grams (71.71% of 100g)

Convert the grams to moles using the respective atomic masses:

Carbon (C): Atomic mass of carbon = 12.01 g/mol

Moles of carbon = 12.12 g / 12.01 g/mol = 1.009 moles

Oxygen (O): Atomic mass of oxygen = 16.00 g/mol

Moles of oxygen = 16.17 g / 16.00 g/mol = 1.010 moles

Chlorine (Cl): Atomic mass of chlorine = 35.45 g/mol

Moles of chlorine = 71.71 g / 35.45 g/mol = 2.024 moles

Find the simplest whole number ratio:

To determine the simplest whole number ratio, divide the number of moles of each element by the smallest number of moles:

Carbon: 1.009 moles / 1.009 moles = 1

Oxygen: 1.010 moles / 1.009 moles = 1

Chlorine: 2.024 moles / 1.009 moles = 2

The simplest whole number ratio is 1:1:2, indicating that the empirical formula of the sample is C1O1Cl2.

However, it is important to note that the empirical formula represents the relative ratio of atoms in the compound and does not provide information about the actual molecular formula or the arrangement of atoms within the molecule. Further analysis, such as molecular weight determination, is necessary to determine the molecular formula.

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The final temperature of the water is 43.92°C.

What is specific heat capacity?

The specific heat is defined as amount of energy in the form of heat to change heat content of 1 gram of substance by one-degree Celsius temperature.

Specific heat capacity of water = 4.184J/g°C

heat (q) = 437.7 J

Initial temperature = 23°C

Final temperature = T

mass of water = 5.00g

using the equation: q= mₓcₓΔT

437.7 = 5ₓ4.184ₓ(T- 23.0)

(T-23.0) = 437.7/ (5ₓ4.184)

T= 23.0°C +20.92°C = 43.92°C

T= 43.92°C

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The number of moles in 5.12 × 10³ Fluorine(F) atoms is 8.45 × 10 ‐ ²³ moles.

The moles is defined as the measurement of the amount of any substance. Its is the measure of the amount of elementary particles in a substance. One mole is numerically equal to 6.023 × 10²³  which is called Avogadro's number.

From Periodic Table, we can find that Molecular Weight of Fluorine(F) is 19. We know the Molar Weight of any element is numerically equal to its Molecular Weight i.e. numerically, Molecular Weight = Molar Weight of any matter.

The number of moles in 5.12 × 10³ Fluorine(F) atoms will be calculated as: (5.12 × 10³) / (6.023 × 10²³) = 8.45 × 10 ‐ ²³ moles

So, there are approximately 8.45 x 10^-23 moles  in 5.12 × 10³ atoms of Fluorine.

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