(10 points) An electron, proton and neutron have the same speed. Which has the smallest matter wave wavelength?

Answer:

If we know the force of an object in Newtons) and we know how fast the object accelerates in ms"), then we can easily find the mass of the object by

dividing the force by the mass

Answer: 0on

Explanation:

The following reactions of alkenes is not stereospecific is C. acid-catalyzed hydration reaction (H₂O/H₂SO₄)

Stereospecific reactions occur when the stereochemistry of the reactant is retained in the product. These types of reactions are distinguished by the use of double-headed arrows in reaction mechanisms to demonstrate the conservation of stereochemistry. The following reactions of alkenes stereospecific are hydrogenation (H₂/P₁), bromination (Br₂ in CH₂Cl₂), bromohydrin formation (Br₂/H₂O).

The acid-catalyzed hydration reaction (H₂O/H₂SO₄) of alkenes is not stereospecific because the H and OH atoms can be added to either face of the alkene's double bond. When the reaction occurs, an intermediate carbocation is formed, which is planar. This carbocation can either be attacked by the nucleophile from above or below, resulting in the formation of an equal amount of stereoisomers. Therefore, the correct answer is C. acid-catalyzed hydration reaction (H₂O/H₂SO₄) is not stereospecific.

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Yes, the cost of wages paid to assembly-line workers should be treated as a manufacturing overhead cost.

Manufacturing overhead costs are indirect costs that are incurred in the production process and cannot be directly traced to specific products or units. Examples of manufacturing overhead costs include rent, utilities, insurance, and maintenance. Wages paid to assembly-line workers are also considered a manufacturing overhead cost because they are incurred in the production process and cannot be directly traced to specific products or units.

To account for manufacturing overhead costs, companies typically use a process called absorption costing. Absorption costing assigns manufacturing overhead costs to the products or units produced based on the direct labor hours required to produce each unit. The overhead costs are then allocated to each unit based on the proportion of direct labor hours required to produce each unit.

In the case of assembly-line workers, their wages are typically allocated based on the number of hours they work on each production run or shift. This allocation is then used to calculate the total manufacturing overhead cost for each unit produced and to determine the selling price of the product.  

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Answer:

Aqueous sodium ions, Aqueous chloride ions

Explanation:

Sodium chloride dissociates into Na+ and Cl- ions in water

Sodium chloride crystals may also be present in case of saturated solution

Answer:

Explanation:

The number of molecules can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 1.5 × 6.02 × 10²³

We have the final answer as

Hope this helps you

The regulation of citrate synthase is important for maintaining cellular energy balance. The enzyme is inhibited by effectors such as NADH, ATP, and succinyl CoA, which makes sense due to their roles in cellular energy metabolism.

Citrate synthase catalyzes the reaction between oxaloacetate and acetyl-CoA to form citrate, a key step in the citric acid cycle. The rate of this reaction is limited by the availability of substrates oxaloacetate, acetyl-CoA, and NAD+, which gets converted to NADH during the cycle.

High concentrations of NADH and ATP indicate that the cell has sufficient energy supply. In such cases, citrate synthase is inhibited to prevent excessive production of NADH, which would ultimately lead to more ATP generation. This ensures that the cell does not produce more energy than needed.

Similarly, when there is an abundance of ATP, the enzyme is inhibited to prevent the introduction of acetyl-CoA into the citric acid cycle. This allows the cell to maintain an optimal energy balance by preventing unnecessary energy production.

In conclusion, the regulation of citrate synthase by effectors such as NADH, ATP, and succinyl CoA is crucial for maintaining cellular energy homeostasis. By responding to the concentrations of these molecules, citrate synthase helps to ensure that the cell produces the appropriate amount of energy for its needs.

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Answer:Gases in the atmosphere absorb heat.

Explanation: :) edge2020

Gases in the atmosphere absorb heat is the interaction that contributes to the greenhouse effect.  

• The solar energy captivated at the surface of the Earth is radiated back to the atmosphere in the form of heat. The greenhouse gases absorb the majority of this heat.  

• The greenhouse gases are the complex molecules in comparison to other gases present in the atmosphere, they comprise the composition, which captivates heat.  

• These gases radiate the heat back to the surface of the Earth, to another molecule of greenhouse gas and thus contributing to greenhouse effect.  

• There are many kinds of greenhouse gases, of them the major ones are the carbon dioxide, methane, and nitrous oxide.  

Thus, the statement, that is, gases in the atmosphere absorb heat is correct.

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Answer:

dry cell

Explanation:

because it stops when salt distribution becomes equal as bridge is not added

Answer:

a

Explanation:

a p e x :)

The chemical reaction through which a molecule of sucrose is broken down into its monomers (glucose and fructose) is an example of:

\(Sucrose + H_{2} O -- > glucose + fructose\)

What is chemical reaction?

However, A chemical change occurs while the candle burns in the demonstration.

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The initial rates approach, which examines the beginning rates of reactions, the concentration of reactants, and their impact on the total reaction, is most frequently used to calculate the rate law.

A rate law demonstrates the relationship between reaction rate and reactant concentration. In general, the rate law for a reaction like aA products takes the form rate = k [A]n,

In order to understand how this functions, let's look at the most straightforward example.

Where n is the reaction's rank in relation to A and k is the proportionality constant known as the rate constant.

Therefore, rate=k[NO]2[O2] represents a rate law for the overall reaction that is consistent with the proposed mechanism.

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The Given question is incomplete. The complete question is given below:

Step 1: 2NO⇄(NO)2 (fast)

Step 2: (NO)2+O2⇄2NO2 (slow)

The elementary steps in a proposed mechanism for the reaction 2 NO(g)+O2(g)→2NO2(g) are represented by the equations above. Which of the following is the rate law for the overall reaction that is consistent with the proposed mechanism?

The initial rates approach, which examines the beginning rates of reactions, the concentration of reactants, and their impact on the total reaction, is most frequently used to calculate the rate law.

A rate law demonstrates the relationship between reaction rate and reactant concentration. In general, the rate law for a reaction like aA products takes the form rate = k [A]n,

In order to understand how this functions, let's look at the most straightforward example.

Where n is the reaction's rank in relation to A and k is the proportionality constant known as the rate constant.

Therefore, rate=k[NO]2[O2] represents a rate law for the overall reaction that is consistent with the proposed mechanism.

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The Given question is incomplete. The complete question is given below:

Step 1: 2NO⇄(NO)2 (fast)

Step 2: (NO)2+O2⇄2NO2 (slow)

The elementary steps in a proposed mechanism for the reaction 2 NO(g)+O2(g)→2NO2(g) are represented by the equations above. Which of the following is the rate law for the overall reaction that is consistent with the proposed mechanism?

Answer:

Winter

Explanation:

Answer:

winter

Explanation:

because it is away from the sun

The correct formula of the molecule is C4H9O2.

The model of a compound is a representation of the molecule. It gives us an idea of what the molecule looks like as well as its molecular formula.

Looking at the structure of the compound as shown in the model in the question, the correct formula of the molecule is C4H9O2.

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Answer:C4H9O2.

Explanation:

Answer:

Think about it. Chemistry is the study of matter.

Explanation:

Anything that has mass and takes up space, and the changes that matter will have when it is in different environments or conditions. Chemistry is used everyday with the development of plastics, wood burning, prescriptions, cosmetics, etc. Everything you touch is made of an element. there's 5 branches of chemistry including Biochemistry, organic chemistry and physical chemistry. -(you find the others).

Chemistry studies our surroundings on a molecular level through atoms and molecules with chemical reactions and understanding the specific properties. There are patterns on the periodic table you should check out.

good luck and have fun!

Answer:

chemistry is the study of structure of substance and what happens to them in different conditions

Answer:

Even the most powerful light-focusing microscopes can't visualise single atoms. What makes an object visible is the way it deflects visible light waves. Atoms are so much smaller than the wavelength of visible light that the two don't really interact. To put it another way, atoms are invisible to light itself.

Explanation:

Can you give me Brainliest pls

And Your welcome :)

Answer:

The atoms are too small to see.

Explanation:

Hope my answer helped you!!

Answer:

3

Explanation:

becasue

True. Some nitrogen-containing fertilizers can be significant sources of soil acidity in cultivated soils.

When these fertilizers break down, they release hydrogen ions, which can lower the pH of the soil and increase its acidity. When these fertilizers are applied to the soil, they undergo a process called nitrification, which converts the nitrogen in the fertilizer into forms that plants can use.

During this process, nitrate ions are produced, which are negatively charged and can displace positively charged ions, such as calcium, from the soil particles. As a result, calcium and other positively charged ions may be leached from the soil, leading to soil acidity.

Additionally, the nitrification process produces hydrogen ions, which can also contribute to soil acidity. Over time, the repeated application of nitrogen-containing fertilizers can lead to a decrease in soil pH and a decline in soil fertility.

To mitigate the negative effects of nitrogen fertilizers on soil acidity, it is recommended to use these fertilizers judiciously and to monitor soil pH levels regularly. Liming, which involves the application of calcium carbonate or other alkaline materials, can also help to neutralize soil acidity.

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Some nitrogen-containing fertilizers are significant sources of soil acidity in cultivated soils. This occurs due to the chemical reactions that take place when nitrogen-based fertilizers are applied to the soil.

Step 1: Nitrogen-containing fertilizers, such as ammonium nitrate or urea, are applied to the soil.

Step 2: Once applied, the ammonium (NH4+) in these fertilizers is converted to nitrate (NO3-) through a process called nitrification. This process releases hydrogen ions (H+).

Step 3: The release of hydrogen ions increases the concentration of H+ in the soil, resulting in a drop in pH levels and, consequently, increased soil acidity.

Step 4: High soil acidity can negatively impact plant growth, nutrient availability, and soil structure, which may require corrective actions such as the addition of lime to restore the soil's pH balance.

In summary, nitrogen-containing fertilizers can be significant sources of soil acidity in cultivated soils due to the chemical reactions and release of hydrogen ions during the nitrification process.

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Answer:

it will be same as before

Answer:

The mass on the balance stays the same

Explanation:

.

Answer:

0.640mol/L

Explanation:

Firstly, we can calculate the number of moles of nitric acid. We can do thi by using the formula: n=cv (no. moles = concentration x volume).

The given concentration is 1.60mol/L, so we need to convert the given volume into liters to use the formula correctly. There are 1000mL in a L therefore 200/1000 = 0.200L

1.60x0.200 = 0.320 total moles of nitric acid.

Now we can use n=cv to work out the new concentration by rearranging to c=n/v.

Our new volume is 0.200+0.300 = 0.500L

And our number of moles is 0.320.

Therefore the new concentration of the acid is:

c=0.320/0.500 = 0.640mol/L

Hope this helps!

Answer:

how are you doing, please kindly help me with my homework

Here's a general overview of how information travels through your body from a stimulus to a reaction:

1. Stimulus: A stimulus is any physical or chemical change in the environment that activates a sensory receptor in your body. Examples of stimuli include light, sound, touch, taste, and smell.

2. Sensory receptors: Sensory receptors are specialized cells that detect stimuli and convert them into electrical signals that can be transmitted to the nervous system. Each type of sensory receptor is specialized to respond to a specific type of stimulus.

3. Sensory neurons: Sensory neurons are nerve cells that transmit electrical signals from sensory receptors to the spinal cord or brain. The sensory neurons are part of the peripheral nervous system.

4. Spinal cord or brain: Depending on the type of stimulus and where it occurs in the body, the electrical signals from sensory neurons may travel directly to the spinal cord or to the brain. The spinal cord is the main pathway for signals that don't require conscious awareness, such as reflexes, while the brain processes signals that require conscious perception.

5. Processing: Once the electrical signals reach the spinal cord or brain, they are processed by a network of neurons that interprets the information and generates a response. This processing may involve multiple regions of the brain, depending on the complexity of the stimulus and the required response.

6. Motor neurons: Motor neurons are nerve cells that transmit electrical signals from the brain or spinal cord to muscles or glands. Motor neurons are part of the peripheral nervous system.

7. Response: The electrical signals from motor neurons cause muscles to contract or glands to secrete hormones or other substances, producing a physical response to the stimulus. This response may be immediate, as in the case of a reflex, or it may be delayed, as in the case of a conscious decision to move or speak.

Overall, the path of information from a stimulus to a reaction involves a complex interplay between sensory receptors, sensory neurons, the spinal cord and brain, motor neurons, and muscles or glands. Each step in this process is critical to the overall response to the stimulus, and any disruptions or damage to these systems can result in a range of sensory and motor deficits.

Silicates are the most abundant mineral group and make up about 90% of the Earth's crust. They are composed of silicon and oxygen atoms held together by strong chemical bonds.

Silicates are generally hard and durable and can form a wide variety of shapes and colors. They are also very abundant in the Earth's crust, making them an important component of rocks and soil. Silicates are also important components of many meteorites, and some have been found on other planets and moons. Silicates can form in igneous, sedimentary, and metamorphic rocks, and they often form the crystals found in rocks and gemstones.They are often resistant to weathering, meaning they can last for a long time on the surface of the Earth. Silicates are also abundant in meteorites, comets, and other extraterrestrial rocks, which provide clues about the formation and evolution of our solar system.

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Answer:

B. False

Explanation:

step by step explanation

Answer:

False

Explanation:

The correct option is a. The identity of an element is determined by the number of its protons.

An element is defined by the number of protons in its atomic nucleus. This value is known as the atomic number and is unique to each element. The number of protons determines the element's chemical properties, such as its reactivity and the way it interacts with other elements.

For example, hydrogen, the lightest element, has one proton, while oxygen, a heavier element, has eight protons. This distinction in the number of protons is what sets these elements apart and gives them their individual identities.

The number of electrons in an atom is equal to the number of protons, ensuring overall electrical neutrality. Neutrons, on the other hand, contribute to the atom's mass but do not play a significant role in determining the element's identity.

Therefore, the correct option is a. the identity of an element is determined by the number of its protons

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Answer:

c. 39

Explanation:

You round the number 39.098 to make it easier. Since you can't round it up to forty because the number after the 9 in-front of the decimal is a over i is unable to be rounded up

This problem is providing us with the both mass of aluminum and copper (II) chloride utilized in a chemical reaction and asks for the best statement about the final state of the reaction, which turns out to be less than 6.0 grams of copper is formed, and some copper chloride is left in the reaction mixture.

In chemistry, we use stoichiometry as a tool for calculating mole-mass relationships in chemical reactions. Thus, a balanced chemical equation is required as well as the corresponding mole ratio of the defined to the required substance and their molar masses when given grams.

Hence, the balanced chemical equation here is:

\(3CuCl_2 + 2Al \rightarrow 2AlCl_3 + 3Cu\)

Next, we can use the given masses to calculate the mass of copper produced by each reactant:

\(1.50gAl*\frac{1molAl}{26.98gAl}*\frac{3molCu}{2molAl}*\frac{63.546gCu}{1molCu} =5.30gCu\\\\14gCuCl_2*\frac{1molCuCl_2}{134.45gCuCl_2}*\frac{3molCu}{3molCuCl_2}*\frac{63.546gCu}{1molCu} =6.64gCu\)

Where we can see 5.30 g of copper is the correct produced amount as Al is found to be the limiting reactant, which is all consumed, and therefore the copper (II) chloride is in excess.

Thereby, we conclude that less than 6.0 grams of copper is formed, and some copper chloride is left in the reaction mixture.

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Answer:

Less than 6.0 grams of copper (II) is formed, and some copper chloride is left in the reaction mixture

Explanation:

The mass of the copper is 50 kg and the change in temperature (ΔT) is 130 C (140 C - 10 C). Therefore, the entropy change of the copper is 6.5 kJ/K (50 kg × 130 C × 0.05 kJ/K).

Copper is a soft, malleable, and ductile metal that is naturally found in the Earth's crust. It is an essential element for all forms of life, and it is used in a variety of ways in the modern world. Copper is one of the oldest metals used by humans and has been used for thousands of years in the production of jewelry, coins, and statues. It is also used in the production of electrical wiring, plumbing pipes, and other components used in the construction of buildings. Copper is also used in many industrial applications, such as in the production of semiconductors, motors, and other electronic components.

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Develop bioluminescence would you be more likely to find in the jellyfish that lives in the deeper waters of the ocean.

Light generated by a chemical reaction inside a living thing is known as bioluminescence. A type of chemiluminescence known as bioluminescence is simply a chemical process that results in the production of light.

A "cold light" is what bioluminescence is. Less than 20% of a light's energy is used to produce thermal radiation, or heat.

The ocean is the most common habitat for bioluminescent creatures. Fish, bacteria, and jellies are among the marine creatures that glow bioluminescent. Fireflies and fungus are two examples of the bioluminescent creatures that can be found on land.

Therefore, Develop bioluminescence would you be more likely to find in the jellyfish that lives in the deeper waters of the ocean.

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Answer:

To use the Clausius-Clapeyron equation, we need to know two sets of conditions for the substance in question. Let's start with question 1:

Question 1:

Given:

Enthalpy of vaporization, ΔHvap = 35.2 kJ/mol

Vapor pressure at T1 = 1 atm (or 760 torr), T1 = 64.7°C

We want to find: Vapor pressure at T2 = 41.9°C

First, we need to convert temperatures to Kelvin:

T1 = 64.7 + 273.15 = 337.85 K

T2 = 41.9 + 273.15 = 315.05 K

Now we can use the Clausius-Clapeyron equation:

ln(P2/P1) = -ΔHvap/R * (1/T2 - 1/T1)

where P1 and P2 are the vapor pressures at temperatures T1 and T2, respectively, R is the gas constant (8.314 J/mol·K), and ln is the natural logarithm.

Solving for P2, we get:

P2/P1 = e^(-ΔHvap/R * (1/T2 - 1/T1))

P2 = P1 * e^(-ΔHvap/R * (1/T2 - 1/T1))

Substituting the given values, we get:

P2 = 1 atm * e^(-35.2 kJ/mol / (8.314 J/mol·K) * (1/315.05 K - 1/337.85 K))

P2 = 0.496 atm

Rounding to three decimal places, the vapor pressure of methanol at 41.9°C is 0.496 atm.

Answer: 0.496 atm

Question 2:

Given:

Enthalpy of vaporization, ΔHvap = 27.5 kJ/mol

Vapor pressure at T1 = 760 torr, T1 = 34.6°C

We want to find: Vapor pressure at T2 = 0.1°C

Converting temperatures to Kelvin:

T1 = 34.6 + 273.15 = 307.3 K

T2 = 0.1 + 273.15 = 273.25 K

Using the Clausius-Clapeyron equation:

ln(P2/P1) = -ΔHvap/R * (1/T2 - 1/T1)

Solving for P2, we get:

P2/P1 = e^(-ΔHvap/R * (1/T2 - 1/T1))

P2 = P1 * e^(-ΔHvap/R * (1/T2 - 1/T1))

Substituting the given values, we get:

P2 = 760 torr * e^(-27.5 kJ/mol / (8.314 J/mol·K) * (1/273.25 K - 1/307.3 K))

P2 = 7.25 torr

Rounding to one decimal place, the vapor pressure of dimethyl ether at 0.1°C is 7.3 torr.

Answer: 7.3 torr

The concentration of the diluted solution be 100 ppm.

Chemistry uses the term PPM, or parts per million, to describe extremely low concentrations of solution. One liter of solution containing milligrams of the chemical is what is meant by this term. Technically speaking, it is a dimensionless quantity that can be used to measure lower concentrations in a solution.There are numerous scientific uses for this conversion.

It refers to how many of the one million parts that make up the entire solution a specific substance or molecule occupies. It is used to describe substance concentrations that are typically dissolved in a solvent. When there are two solutions, and one of them has a known ppm concentration, the ppm concentration can be calculated by:

ppm1 x volume = ppm2 volume

500 ppm x 2 mL = ppm2 x 10 mL

ppm 2 = 500 ppm x 2 mL/ 10 mL

ppm 2 = 100 ppm

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