What happens to the reaction rate as a reactant gets used up?
A. The rate varies,
B. The rate goes down,
O c. The rate goes up.
D. The rate stays constant.

Answer:

it 3

Explanation:

When a substance undergoes a chemical reaction in a closed system, mass and energy will not change.

A closed system in the thermodynamic system is considered such a system in which energy can easily either enter or leave the system while mass is preserved within the system's borders.

In the same way, in chemistry, such system which enables energy transfer but does not allow reactants or products to enter or exit is considered a Closed System.

In the case of chemical reactions, usually, heat and light are considered Reactants and products.

So, when a substance undergoes a chemical reaction, then in that case the mass and the energy will not change.

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Answer:

200.0lg

Explanation:

please give a brainliest

Answer:

1. Observing

2. Classifying

3. Predicting

4. Making a hypothesis

5. Experimenting

6. Measuring

7. Communicating

8. Making an inference

9. Constant

10. Interpreting data

Explanation:

Hope this helps!!

hope it is helpful to you

Answer: 2.125 moles of NaClO4 would be produced if 4.250 moles of O2 reacted completely with NaCl.

Explanation:

The question requires us to calculate the amount of moles of sodium chlorate (NaClO4) that would be produced when 4.250 moles of oxygen (O2) react completely with sodium chloride (NaCl).

The unbalanced chemical equation for the reaction between O2 and NaCl to form NaClO4 can be written as:

Note that the equation above is not balanced: we need to adjust the amount of O atoms.

There are 2 O atoms on the left side, while there are 4 O atoms on the right side, thus we can adjust the coefficient of O2 from 1 to 2. The balanced chemical equation can be written as:

From the balanced chemical equation, we can see that 2 moles of O2 are necessary to produce 1 mol of NaClO4. With this information, we can calculate how many moles of NaClO4 would be obtained from 4.250 moles of O2:

2 mol O2 --------------------------- 1 mol NaClO4

4.250 mol O2 -------------------- x

Solving for x, we'll have:

Therefore, 2.125 moles of NaClO4 would be produced if 4.250 moles of O2 reacted completely with NaCl.

Explanation:

In the reaction above, we clearly see that a chemical reaction took place but what kind of reaction you might ask?

Looks like it is Thermal decomposition of copper carbonate because decomposition reaction takes place due to the added heat. Decomposition in simple terms in chemical breakdown and here this result is obtained by adding heat.

1) What happened to the lime water?

Although not pictured above, but my assumption is that lime water turned milky or turbid because when CO2 comes in presence of limewater they react to form a percipitate of Calcium carbonate which is the milky color that you get.

2) What does this prove?

- My understanding would be that it proves that CO2 was formed, and that most metal carbonates undergo thermal decomposition into metal oxide and carbon dioxide, and also that a reaction took place since new products were made.

0.11136 kg of fluorine will be released into the air over 6 months if the freon leak is not fixed.

One mole of a substance has a mass known as its molar mass. The standard unit of measurement is grammes per mole (g/mol). It is calculated by taking the sum of the atomic masses of all the atoms present in one mole of a substance. It is an important concept in chemistry as it is used to calculate the mass of individual elements and compounds.

34.06 g of C2H2F3Cl is released into the air every week through leaking. So, by multiplying 34.06 g by 4 (weeks in a month) gives 136.24 g of C2H2F3Cl, which is released into the air every month.

By again, multiplying 136.24 g by 6 (months) gives 817.44 g of C2H2F3Cl that is released into the air over 6 months.

The molar mass of C2H2F3Cl is 140.50 g/mol. Dividing 817.44 g by 140.50 g/mol to get the amount of moles of C2H2F3Cl released gives 5.84 moles of C2H2F3Cl, released into the air over 6 months.

The molar mass of fluorine is 19.00 g/mol. Multiplying 5.84 moles of C2H2F3Cl by 19.00 g/mol to get the amount of fluorine released gives 111.36 g of fluorine, released into the air over 6 months.

At the end, dividing 111.36 g of fluorine by 1000 g/kg to get the amount of kilograms of fluorine released gives 0.11136 kg of fluorine, released into the air over 6 months.

Therefore, 0.11136 kg of fluorine will be released into the air over 6 months if the freon leak is not fixed.

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If 60 grams of the substance are added to 100 g of water, the solution can be categorized as supersaturated.

The graph shows the number of grams that can be dissolved in 100 grams of water at different temperatures. In general, solubility increases with temperature.

According to the graph, at a temperature of 30°C, it is possible to dissolve a total of 48 to 49 grams of \(KNO_{3}\). This information implies that if we add 60 grams at this temperature not all the substance would be dissolved, and therefore the solution would be supersaturated.

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The solubility of carbon dioxide in water at the given pressure would be 8.45 g CO2 in 100 mL of water.  

According to Henry's law:

C = kH x P

where:

To solve this problem, we need to use the Henry's law constant for carbon dioxide in water at 20 \(^oC\), which is 0.0349 mol/L/atm. Let's convert the given solubility from mass/volume units to molar concentration units as follows:

Now we can use Henry's law to calculate the solubility of carbon dioxide in water at 5.50 atm:

Concentration from mol/L to mass/volume units:

0.192 mol/L x 44.01 g/mol = 8.45 g CO2 / 100 mL

Therefore, the solubility of carbon dioxide in water at 5.50 atm pressure is approximately 8.45 g CO2 in 100 mL of water at 20 \(^oC\).

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Answer:

the best tool for separating marbles from water is evaporation disc

It's never a good idea to use your credit card when experiencing strong emotions, especially if you tend to steer toward 'retail therapy.

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Explanation: You can put this in your own words. How? Well, try to find the most important stuff in your own words and write it down.

Answer:

The answer is "the electron configuration of the element".

Explanation:

Electronics are distributed in atomic and molecular orbit via electrons from an atom or a molecule.

It reflects a most frequent dependence on valence electrons in the outer.

Through analyzing the context of the regular periodic table, the individual atoms are helpful. That's also important to understand chemical connections, which hold electrons together. This similar approach helps to explain the specific characteristics of lasers or semiconductors for bulk materials.

Element w is less reactive than elements x, y, and z. The element with the lower atomic number is typically less reactive.

Element w has an atomic number of 9, element x has an atomic number of 10, element y has an atomic number of 11, and element z has an atomic number of 12. Based on this information, we can conclude that element w is less reactive than elements x, y, and z.

This is because the reactivity of an element is largely determined by the number of valence electrons it has. Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical reactions. Elements with fewer valence electrons are less reactive because they are more stable. Element w has only one valence electron, while elements x, y, and z have two, three, and four valence electrons, respectively.

In general, elements with a full outermost shell of electrons, such as the noble gases, are the least reactive because they are highly stable. Elements that are close to having a full outermost shell, such as element w, are also relatively stable and less reactive. On the other hand, elements with only a few valence electrons, such as the alkali metals, are highly reactive because they are trying to gain or lose electrons in order to achieve a full outermost shell.

Overall, the reactivity of an element is determined by its electronic structure, with elements having fewer valence electrons generally being less reactive than those with more. In the case of the elements w, x, y, and z, we can see that element w has the fewest valence electrons and is therefore the least reactive.

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Answer: 0.0827

Hope This Will Help You And This Should Be The Correct One.

Answer:

Fire is the result of applying enough heat to a fuel source, when you've got a whole lot of oxygen around. As the atoms in the fuel heat up, they begin to vibrate until they break free of the bonds holding them together and are released as volatile gases. These gases react with oxygen in the surrounding atmosphere.

Explanation:

Answer:

The volume of Component 1 is 36 cubic inches.

Explanation:

To calculate the volume of a composite solid, we need to determine the individual volumes of the different components and then add them together.

In this case, the composite solid consists of multiple components with the following dimensions:

Component 1:

Length: 4 inches

Width: 3 inches

Height: 3 inches

To find the volume of Component 1, we multiply the length, width, and height together:

Volume of Component 1 = Length x Width x Height = 4 in x 3 in x 3 in = 36 cubic inches

Therefore, the volume of Component 1 is 36 cubic inches.

Please provide the dimensions of the remaining components of the composite solid, and I will calculate the total volume by summing up the individual volumes.

Explanation:

MgCl2(aq) + NaOH(aq) = Mg(OH)2(s) + NaCl. Both magnesium nitrate and sodium hydroxide solutions are colourless solutions. When they react with each other, a white precipitate (Mg(OH)2) and a colourless solution is given. Sodium chloride exists in the colourless aqueous solution.

Answer:

C. The more electronegative atom willl make its end of the

bond more negative

A P E X

The electronegativity affects the polarity of the bond between two atoms, as the more electronegative atom will make its end of the bond more negative. The correct option is C.

Electronegativity is a charge that shows the ability of an element to gain electron pairs with other elements during bonding. Electronegativity is altered by the distance between the electron and the nuclei and the atomic number of the element.

Polarity is the state of the atomic body in which it has placed charges in an opposite way to the other atoms so that they can join together.

Thus, the correct option is C. The more electronegative atom will make its end of the bond more negative.

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An error during DNA replication would create a gene mutation.

During DNA replication, the genetic information in a cell is copied to make new DNA molecules. However, mistakes can occur during this process, leading to changes in the DNA sequence, which can result in a mutation. Mutations can also be caused by exposure to environmental factors, such as radiation or chemicals, which can damage the DNA molecule directly or affect the cellular processes involved in DNA replication.

Mutations can have a variety of effects on the organism, ranging from no effect to causing serious health problems or even death. Gene mutations can also be inherited from a parent, which can result in genetic disorders or predisposition to certain diseases. Therefore, it is important to understand the mechanisms of gene mutations and their potential impacts on organisms.

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A peptide bond is a covalent link produced by one amino acid's carboxyl group (-COOH) and another amino acid's amino group (-NH2). A condensation process.

between the two groups produces a molecule of water (H2O) and a peptide bond (-CO-NH-). The peptide bond has a planar, partial double bond structure. This signifies that the electrons in the bond are distributed evenly across the two atoms, although not all orbitals are involved in bonding. In the creation of polypeptide sequences, the peptide bond is critical. It connects individual amino acids to form a chain of amino acids capable of folding into specified three-dimensional structures. The function of these structures is determined by them.The polypeptide is a kind of protein. The peptide bond also permits the polypeptide to be flexible, which is necessary for its proper activity.The initial amino acid in a peptide is known as the N-terminal (NH2) residue, while the last amino acid is known as the C-termina.

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The poisoning proton pumps impact anion uptake in a way that it would decrease the uptake of anions via cotransport with protons.

Proton poisoning pumps is the contamination of both the anode and cathode sides. Durability and performance degradation of PEM fuel cells are one of the most critical challenges that are primarily associated with this technology. If proton pump function is decreased, it simply indicates that the amount of proton that goes outside the cell will also be decreased.

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There are 3.44 x 10^{22} particles in 0.057 moles of lithium bromide.

The lithium bromide formula also known as the lithium monobromide formula or Bromo lithium formula is explored. It is a counterion bromide-based salt of lithium.

we have to use Avogadro's constant,

Avogadro's constant, is approximately equal to 6.022 x 10^{22} particles per mole.

we can use the following formula:

number of particles = moles x Avogadro's constant

Substitute the values,

number of particles = 0.057 moles x 6.022 x 10^{23} particles/mol

Simplifying the equation

number of particles = 3.44 x 10^{22} particles

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Answer:

fe9ufeohdwbkdwsdjvdwihdwkbfw

Answer:

water droplets falling on the clay

Explanation:

i finished this test and it was the right answer so lol

1. Oxygen is a reactant needed for all combustion reactions.

2. The products of the complete combustion reaction of a hydrocarbon (compound containing carbon and hydrogen) are carbon dioxide and water.

3. Complete combustion takes place if the quantity of oxygen is sufficient.

4. Incomplete combustion takes place if the quantity of oxygen is insufficient.

5. Combustion is a exothermic change.

6. In a combustion reaction, oxygen is the oxidizer and the substance which burns is the fuel.

7. The lower the kindling temperature, the easier is the combustion.

8. If a substance burns at room temperature in the absence of a flame the combustion is said to be spontaneous.

9. Combustion reactions are accompanied by heat and light effect.

10. Combustion reactions don't take place at the same rate.

1)Oxygen is a reactant needed for all combustion reactions. Combustion reactions are chemical reactions that involve the rapid combination of a fuel (usually a hydrocarbon) with oxygen gas. Oxygen acts as the oxidizing agent, providing the necessary component for the reaction to occur. Without oxygen, combustion cannot take place.

2)The products of the complete combustion reaction of a hydrocarbon are carbon dioxide and water. In the presence of sufficient oxygen, hydrocarbons undergo complete combustion, resulting in the production of carbon dioxide (\(CO_2\)) and water (\(H_2O\)). This reaction releases a significant amount of energy in the form of heat and light.

3)Complete combustion takes place if the quantity of oxygen is sufficient. Complete combustion occurs when there is an adequate supply of oxygen available for the reaction. In this case, the fuel (hydrocarbon) reacts completely with oxygen, resulting in the formation of carbon dioxide and water as the only products

4)Incomplete combustion takes place if the quantity of oxygen is limited. In situations where there is insufficient oxygen available, incomplete combustion occurs. This leads to the formation of products such as carbon monoxide (CO) and carbon (soot) in addition to carbon dioxide and water. Incomplete combustion is less efficient and can release harmful pollutants into the environment.

5)Combustion is a chemical change. Combustion is classified as a chemical change because it involves the breaking and forming of chemical bonds between atoms and molecules. The reactants (fuel and oxygen) undergo a chemical reaction to produce new substances (products) with different properties, such as carbon dioxide and water. Heat and light are also typically released during combustion.

6)In a combustion reaction, oxygen is the oxidizer, and the substance that burns is the fuel or combustible material. Oxygen acts as the oxidizing agent, meaning it accepts electrons from the fuel, leading to the oxidation (burning) of the fuel. The fuel provides the carbon and hydrogen atoms that combine with oxygen to form carbon dioxide and water.

7)The lower the kindling temperature, the easier the combustion. The kindling temperature is the minimum temperature at which a substance can ignite and sustain combustion. If the kindling temperature is lower, it means that less heat is required to initiate the combustion process. Substances with lower kindling temperatures are more prone to catching fire and sustaining combustion.

8)If a substance burns at room temperature in the absence of a flame, the combustion is said to be spontaneous. Spontaneous combustion refers to the ignition and burning of a substance without the need for an external ignition source, such as a flame. It occurs when certain materials, under specific conditions, undergo self-heating and eventually reach their ignition temperature, leading to combustion.

9)Combustion reactions are accompanied by heat and light effects. Combustion reactions are highly exothermic, meaning they release a significant amount of heat energy. This energy is released in the form of heat and light, resulting in flames or glowing embers during combustion.

10)Combustion reactions don't take place at the same rate for all substances. The rate of combustion can vary depending on factors such as the nature of the fuel, the availability of oxygen, temperature, and pressure. Different substances have different combustion rates due to variations in their chemical properties and reactivity.

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