I need help answering number 14 A B and C. Thank you!

The precipitates that will be formed respectively from the reactions would be:

Precipitation reactions are reactions during which two aqueous salt solutions combine to produce one aqueous and one insoluble salt.

Following this definition, the precipitates that will be formed from each of the reactions can be deduced as follows:

The production of precipitates follows solubility rules. Some of the rules are:

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Kelly should line her koi fish pond with clay to ensure that no water leaks out through gravitational water flow.

Clay is a natural material that is used widely in pond and water feature construction. It has excellent water-holding properties and is able to form a waterproof seal when properly installed. Clay liners can be formed using either bentonite clay or kaolin clay, both of which are readily available and relatively inexpensive.

When installing a clay liner, it is important to prepare the pond base by removing any sharp or protruding objects, compacting the soil, and smoothing out any irregularities. The clay liner can then be laid down in layers and compacted to ensure a uniform thickness and a solid seal.

Overall, using a clay liner is an effective way to prevent water from leaking out of a koi fish pond and to maintain a healthy environment for the fish.

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The structure of capsaicin is shown in the image attached. There are four polar bonds in capsaicin.

Capsaicin is an organic molecule found in pepper spray. It is the major active ingredient used in the making of pepper spray. The structure of the molecule have been shown in the image attached to tis answer.

We can see that there are four polar bonds in the molecule. Note that polar bonds are bonds between two atoms that have a wide difference in electronegativity values.

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The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.

Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.

The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.

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Answer:

El sistema Dry-Fit funciona transportando la humedad a la superficie de la prenda, facilitando su evaporación. Comúnmente se utilizan materiales como el poliéster o microfibras de materiales sintéticos, ya que no absorben líquidos.

Explanation:

espero que te sirva

The rate of a reaction refers to how fast or slow a reaction progresses over time. Option B is correct.

It is a measure of the change in concentration of reactants or products per unit of time. The rate of a reaction can be expressed in different units, such as moles per liter per second or grams per second. Factors that can affect the rate of a reaction include the concentrations of the reactants, the temperature, the presence of a catalyst, and the surface area of the reactants.

The rate law equation, which expresses the dependence of the reaction rate on the concentrations of the reactants, can also be used to determine the rate of a reaction under different conditions. The rate of a reaction is important for many applications, such as designing chemical reactions for industrial processes, optimizing reaction conditions in laboratories, and understanding biological processes that involve chemical reactions. Option B is correct.

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Ratio of moles of NH₃ produced to moles of N₂ used: 2 moles of NH₃ / 1 mole of N₂

Ratio of moles of NH₃ produced to moles of H₂ used: 2 moles of NH₃ / 3 moles of H₂

From the balanced chemical equation:

N₂ + 3 H₂ ⟶ 2 NH₃

We can determine the ratio of moles of products to the moles of each reactant.

Ratio of moles of NH₃ produced to moles of N₂ used:

From the balanced equation, we can see that 1 mole of N₂ reacts to produce 2 moles of NH₃. Therefore, the ratio is:

2 moles of NH₃ / 1 mole of N₂

Ratio of moles of NH₃ produced to moles of H₂ used:

From the balanced equation, we can see that 3 moles of H₂ react to produce 2 moles of NH₃. Therefore, the ratio is:

2 moles of NH₃ / 3 moles of H₂

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Given the equation of reaction;

N₂ + 3 H₂ ---> 2 NH₃

Calculate the ratio of the moles of produced to the moles of each of the reactants used. (Write two separate ratios.)

Answer: Potential Energy

Explanation:

Chemical energy is stored energy in between bonds. Any energy that is stored and therefore has to be released is potential energy.

The fact that hydrogen peroxide slowly decomposes over time without the addition of any other chemical indicates that the hydrogen peroxide solution that can be purchased in stores is not pure and has been stabilized with other chemicals to prevent it from breaking down too quickly. This is common practice, as pure hydrogen peroxide is unstable and can be dangerous to handle.

One potential safety hazard associated with hydrogen peroxide solutions that have been stabilized with other chemicals is that they can sometimes release oxygen gas when they come into contact with other substances. This can cause the solution to bubble and froth, which can make it difficult to measure and handle safely. In extreme cases, the release of oxygen gas can cause the solution to become pressurized and explode. It is important to handle hydrogen peroxide solutions with care and to follow the instructions on the label to avoid potential hazards.

Answer:

A. Molality should be your answer.

Explanation:

Hope this helps! :)

Answer:

I think the answer is Molality

Explanation:

I hope this helps you.

Answer:

I would say A.

Explanation:

Explanation:

What is biology definition

Answer:

Matter is classified into two broad categories, namely, pure substances and mixtures. Mixtures can be separated into pure substances by physical methods. Pure substances are further divided into categories as elements and compounds. ... A pure substance can be either an element or a compound.

Explanation:

When water is carefully dropped onto the surface of a penny, it can form a dome before spilling over the small lip around the penny's perimeter. Rubbing alcohol can also accumulate, but it will spill before forming a well-rounded dome.

Cohesive forces are powerful, but not invincible. The force of gravity on the water molecules will eventually overcome the cohesive forces as a water drop builds up and out, usually bulging over the sides of the penny. The "skin" will rupture, allowing all the water to escape.

When the drops of water you add to the penny reach the penny's edge, the cohesion and surface tension of water become apparent.

Thus, When the water reaches the edge, a bubble or dome of water begins to form on top of the penny.

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Answer:

A gamma ray is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves and gives off the highest photon energy. The energy spectrum of gamma rays can be used to identify the decaying radionuclides using gamma spectroscopy.

Explanation:

Answer:

\(\huge\boxed{\sf v = 0.004\ m\³}\)

Explanation:

Mass = m = 4 kg

Density of water = 1000 kg/m³ (Standard)

Volume = v = ?

Density = m/v

1000 = 4 / v

1000 × v = 4

v = 4/1000

v = 0.004 m³

\(\rule[225]{225}{2}\)

Answer:

warm air rises and cold air decreases

Explanation:

cold: The absorbed energy moves and expands the molecules in the air, thus reducing the air density  

hot: Hot air increases because it expands when you heat air.

Answer:

warm air rises and cold air decreases

Explanation:

cold: The absorbed energy moves and expands the molecules in the air, thus reducing the air density

hot: Hot air increases because it expands when you heat air.

Answer:   3 mol oxygen.

Explanation:       Because by definition you have 1 mol of potassium nitrate. Potassium nitrate in this quantity comprises 1 mol K, 1 mol N,

It is likened to a fictional scenario in which a team of scientists and "sci-operatives" are working on upgrading their Battle Armor to withstand the attacks from a fictional entity called "THE HIVE."

The team is using thermodynamics, the study of heat energy and its transformations, to analyze the effectiveness of the materials used in the Battle Armor, including silver.

In this scenario, Mr. Pauling is creating a report that analyzes the heating curve for silver, which is used in the Battle Armor. The heating curve shows the changes in temperature over time as heat energy is added, and it helps to determine the melting and boiling points of the substance, as well as the conditions needed for a phase change.

It seems like the purpose of the activity is to understand the use of thermodynamics in analyzing the effectiveness of materials in the Battle Armor, and to look for messages from Mr. Pauling regarding any unfinished parts of the report.

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Answer:

I can say that knowledge of separating mixtures can help us in daily life and within society in the following ways:

1. Purification of water: Separation techniques are used to purify water for drinking and industrial purposes. It is essential to remove impurities from water to prevent diseases.

2. Recycling: Separation techniques are used to separate materials for recycling. This helps reduce the amount of waste in landfills and helps conserve resources.

3. Food industry: Separation techniques are used in the food industry to separate unwanted particles from food products. This helps ensure that the food we eat is safe and free from contaminants.

4. Medicine: Separation techniques are used in the pharmaceutical industry to separate and purify chemicals for use in medicine. This helps ensure that medicines are safe and effective.

5. Environmental protection: Separation techniques are used to remove pollutants from the environment. This helps protect our natural resources and prevent pollution-related health problems.

6. Oil and gas industry: Separation techniques are used to separate crude oil and natural gas into their various components. This helps in the production of energy and other useful products.

In summary, knowledge of separating mixtures is essential in our daily lives and within society. It helps ensure that we have access to safe and clean water, food, medicine, and energy, and also helps protect the environment.

Explanation:

Answer: True

Explanation:

an electrons mass is so little that people neglect it.

To graph the function g(x) = f(-x), you can start with the graph of f(x) and then reflect it about the y-axis.

To find the graph of the function g(x) = f(-x), we can start with the graph of the function f(x) and then reflect it about the y-axis.

If the graph of f(x) is symmetric with respect to the y-axis, meaning it is unchanged when reflected, then g(x) = f(-x) will have the same graph as f(x).

However, if the graph of f(x) is not symmetric with respect to the y-axis, then g(x) = f(-x) will be a reflection of f(x) about the y-axis.

In either case, the resulting graph of g(x) = f(-x) will be symmetric with respect to the y-axis.

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Answer:

(a) Rate of formation of NO2 is also 0.066M/s

(b) Rate of reaction of O2 gas is 0.033M/s

Explanation:

(a) in one second, according to the equation,

2 moles of NO combines with 2moles of NO2.

Therefore 0.066M NO will still consume 0.066mole NO2.

(b) According to the equation,

2 moles NO consumes 1 mole O2, 0.0666M will consume 0.0333 mole O2

The reaction between cyclopropane and propene is a first-order reaction, which means that the rate of the reaction depends on the concentration of the reactant.

The rate law for this reaction is:

Rate = k[Cyclopropane]

Where k is the rate constant, and [Cyclopropane] is the concentration of cyclopropane.

To determine the time required for the concentration of propene to reach 0.100 M, we can use the integrated rate law for a first-order reaction:

ln([Cyclopropane]t/[Cyclopropane]0) = -kt

Where [Cyclopropane]t is the concentration of cyclopropane at time t, [Cyclopropane]0 is the initial concentration of cyclopropane, k is the rate constant, and t is the time.

Rearrange this mathematical statement to work out t:

t = ln([Cyclopropane]0/[Cyclopropane]t) / k

Substituting the given values into this equation, we get:

t = ln(0.500 M / 0.100 M) / 6.7 × 10⁻⁴ s⁻¹

t = 5512 seconds

Therefore, the time required for the concentration of propene to reach 0.100 M is approximately 5512 seconds, or 1.53 hours.

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The element that has chemical properties most similar to sodium is d. rubidium.

What is rubidium?

Rubidium is in the same group (group 1) as sodium in the periodic table and has similar chemical properties, such as reactivity with water and the tendency to form ionic compounds with halogens. Magnesium, oxygen, and phosphorus are not in the same group as sodium and have different chemical properties.

What is periodic table?

The periodic table is a tabular display of all known chemical elements, arranged according to their atomic structure and properties. It is arranged in rows and columns, with elements placed in order of increasing atomic number, which is the number of protons in an atom's nucleus. The periodic table is a powerful tool for predicting the chemical behavior of elements and for understanding the relationships between different elements. It is used extensively in chemistry, physics, and other sciences to help understand the properties and behavior of different elements, and to guide research and development in many different fields.

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Answer:

Limitation of comparative investigation is that when it is done on a huge population, huge amount cost is required. Explanation: Benefit of comparative investigation is that we can get descrete information about specific breed or species. It is important for the study of behaviour of many organisms.

Explanation:

Answer:

D.  400 cal

Explanation:

Spec heat of water   1 cal/gm-C

1 cal / gm-C   * 100 gm * ( 20-16 C) = 400 cal

Answer:

Half

Non-covalently bonded

Elastic collisions

Explanation:

When two atoms are close to each other and are not bonded to each other, the distance between them is the Van Der Waals radius of the compound.

When atoms of gases are not bonded together, they collide with each other in an elastic manner. Kinetic energy and linear momentum are conserved.