We’re do pets food go when they eat it

Lithium is used to build computer batteries, whereas iron is used in industry to construct buildings and bridges.

In engineering, metals are characterized to have electrical conductivity and other properties (e.g., ductility, reflectivity, etc).

For example, Lithium can be defined as soft metal (alkali metal) that is suitable to store electrical energy.

In conclusion, Lithium is used to build computer batteries, whereas iron is used in industry to construct buildings and bridges.

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In an electrolytic cell, nitrate ions (NO3^2-) being anions, do migrate to the anode. However, you would expect water (H2O) to be oxidized at the anode instead of nitrate ions because of the oxidation state of nitrogen in the nitrate ion.

In an electrolytic cell, the anode is the electrode where oxidation occurs. When nitrate ions (NO3^2-) migrate to the anode, they cannot be oxidized because they are already in their highest possible oxidation state (-1 for each oxygen atom and -3 for nitrogen atom).

This means that the nitrate ions are already fully oxidized and cannot undergo further oxidation at the anode. Instead, water (H2O) molecules are more likely to be oxidized at the anode.

This is because water molecules can be oxidized to form oxygen gas (O2) and hydrogen ions (H+), which are both able to participate in further reactions within the cell.

Additionally, water molecules have a lower oxidation state than nitrate ions, which makes them more susceptible to being oxidized. Therefore, it is expected that water rather than nitrate ions will be oxidized at the anode in an electrolytic cell.

Nitrogen in the nitrate ion has an oxidation state of +5, which is already its maximum possible oxidation state. Since it cannot be further oxidized, water molecules present in the solution will be preferentially oxidized at the anode, producing oxygen gas and releasing H+ ions.

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Answer:

305.88 g

Explanation:

4 Al + 3 O₂ → 2 Al₂O₃

First, we convert 6 moles of aluminum (Al) into moles of aluminum oxide (Al₂O₃), using the stoichiometric coefficients:

6 mol Al * \(\frac{2molAl_2O_3}{4molAl}\) = 3 mol Al₂O₃

Finally we convert 3 moles of aluminum oxide into grams, using its molar mass:

3 mol Al₂O₃ * 101.96 g/mol = 305.88 g

LEAST TO MOST POLAR- hexane,diethyl ether,acetone,n-propanol,water ,methanol

Considering the problem  we can say that the kids are compared to be more polar or smaller molecular weight compounds. The more polar compounds interact with silica more just as the kids bus stopped at every point and reached the destination late. Whereas, the adult bus is compared to be less polar compounds or high molecular weight which interacts less and reaches the destination faster.

Thus more polar compounds reaches the destination late whereas less polar compound reaches first.

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Explanation:

For those who like to step beyond the challenge, the mass of the materials could be measured to check the methodology. Prior to separating the mixture, measure the mass of the total mixture. After separating and drying all the materials, measure the mass of each material. Add the three masses together. The total should equal the initial mass if all materials were recaptured during the separation process.

Iron particles will be drawn towards a magnet when one is used. In this manner, aluminum powder and iron powder can be separated. Due to the fact that iron is magnetic but the other three are not.

Magnets are used in magnetic separation, a waste management technique, to remove metal from the trash. As the materials are gathered together and segregated before processing, this is most frequently seen in single and mixed streams of recycling.

This method can be used to eliminate unwanted metals from products. All materials are kept pure by it. Recycling facilities frequently use magnetic separation to isolate metals, purify ores, and separate components from recycling.

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Answer:

increase the temperature

Explanation:

if you increase the temperature, the dissolving rate time will decrease.

The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature. Therefore, the correct option is option D.

A solute dissolves together into solvent during the process of dissolution, creating a solution. We are aware that the collisions between the molecules of the solvent and the particles inside the solid crystal are what cause a solid to dissolve in water.

The pace of dissolution will rise if anything is done to make such collisions happen more frequently or with more energy. Consider attempting to dissolve little sugar in a cup of tea. A cube of sugar would dissolve more slowly than a packet of powdered sugar. Stirring or stirring the solution would speed up the rate of dissolution. The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature.

Therefore, the correct option is option D.

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The four elements make up the bulk of all living things are hydrogen, carbon, oxygen and the nitrogen. they make up the human body of about 96 %.

The 25 elements are most important for the life. the four most important are present in about 96 % are :

the some of the elements are present in about 3.5 % are : calcium, phosphorus, potassium, sulfur, sodium , chlorine and magnesium . the rest are present in the trace amount about 0.5 %. oxygen is the most common element present in the human body. carbon is versatile element which can make the bond by itself.

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Answer:

0.086

Explanation:

got it on acellus

The mass of the dry solute recovered from the given data is 0.086 g.  Option C

To determine the mass of the dry solute recovered, we need to subtract the mass of the boat from the mass of the boat with the dry solute.

Given the data provided:

Boat Mass: 0.730 g

Boat + Solution: 0.929 g

Boat + Dry: 0.816 g

To find the mass of the dry solute, we subtract the boat mass from the boat + dry mass:

Mass of Dry Solute = (Boat + Dry) - (Boat Mass)

Mass of Dry Solute = 0.816 g - 0.730 g

Mass of Dry Solute = 0.086 g

Therefore, the correct answer is c) 0.086 g.

The mass of the dry solute recovered from the given data is 0.086 g. It is important to note that the mass of the dry solute is obtained by subtracting the mass of the boat from the mass of the boat with the dry solute, as the boat mass represents the weight of the empty boat or container used in the experiment.

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The kinds of things that would you need to survive on a deserted island are as follows:

Survival may be characterized as the process that supports you to exist in a place where there is a lot of difficult circumstances arise. It may be of the scarcity of food, space, etc.

According to the context of this question, for the actual and fundamental survival of life, you would not need an internet or cellular connection. But in spite of this one must require fresh air, potable water, and healthy food.

Therefore, the kinds of things that would you need to survive on a deserted island are well described above.

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volume of carbon dioxide is produced in the first minute 0.56 L of CO₂

Salt, carbon dioxide, and water are produced when metal carbonate and an acid react. In order to create calcium chloride (CaCl2), carbon dioxide (CO2), and water, calcium carbonate (CaCO3) combines with hydrochloric acid (HCl) (H2O). We are aware that 22.4 L is the volume occupied by 1 mole of any gas at 0° C and 1 atm pressure.

Thus, 100 g of CaCO₃ produces 22.4 L of CO₂

So, 2.5 g CaCO₃ will form, which equals 100.

56 L of CO (2.5*22.4/100)

= 0.56 L of CO₂

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​

Answer:

Explanation:

Here, we want to check if the equation of the reaction is balanced or not

Now, for a balanced equation of reaction, the number of atoms of the individual elements on both sides of the equation is equal

Now, let us check the atoms:

We have 1 Sr on both sides

We have 1 SO4 on both sides

We have 1 Mg on both sides

We have 2 OH on both sides

From what we can see, the equation of the reaction is balanced

Thus, the correct answer choice is B

One displacement reaction is the answer. Single displacement reactions occur when an element in one compound is changed in another. Metal magnesium reacts in the reaction described.

This powdery substance is created when magnesium delivers 2 electrons to oxygen atoms. The reaction here is exothermic. Chemical reactions that release energy on a net basis are referred to as exothermic reactions.

When magnesium and water mix, hydrogen is created along with a large amount of heat. Metallic magnesium responds rather slowly, but mag vapour, which is created when magnesium burns, reacts very quickly because of the elevated temp and effective mixing, and it swiftly generates heat. Water is added to burning magnesium, which causes an explosion.

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Answer:

The unbalanced chemical equation is;

C. N₂O₅ + H₂O → HNO₃

Explanation:

In balancing a chemical reaction equation, only the coefficients of the terms of the reactants and/or the products are adjusted (and not the subscripts to the atoms in the compounds) to ensure that the total number of each element is the same on either side of the arrow for the chemical reaction

A coefficient term is the number multiplier of the compounds and elements in a chemical reaction

Therefore, the balanced chemical equation is obtained by changing the coefficient of the product from the implied '1' to a '2' as follows;

N₂O₅ + H₂O → 2HNO₃

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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The student made a mistake in substituting the wrong values of the relative abundance of the isotopes Potassium-39 and Potassium-41. That is why his answer was wrong.

The student exchanged the values of the relative abundance of the isotope values. That is why it has resulted in the wrong value of the average atomic mass. On substituting the correct values using the following formula, we get the atomic mass of the respective isotopes as,

atomic mass = Mass x Relative abundance

atomic mass of K⁴¹₁₉ = 40.962 x 0.0688

the atomic mass of K⁴¹₁₉ = 2.8181856amu

Similarly, for the mass of K₃₉¹⁹ = 38.964 x 0.9312

                                                  = 36.28327amu

Thus the average atomic mass of Potassium is given by,

Average atomic mass of potassium = Mass of K₃₉¹⁹ + Mass of K⁴¹₁₉

The average atomic mass of potassium = 36.2832 +2.8181

The average atomic mass of potassium = 40.962amu

Hence, the correct value of the average atomic mass is thus obtained.

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Cyclopropane is highly strained due to its compressed bond angles, resulting in bond angle strain, as well as torsional strain and steric strain caused by the small ring size. The strain in cyclopropane makes it a highly reactive and unstable molecule, requiring energy to break its strained bonds and achieve a more stable configuration.

Cyclopropane is a highly strained molecule due to the following reasons:

Bond Angle Strain: Cyclopropane consists of three carbon atoms arranged in a triangle, resulting in carbon-carbon bond angles of approximately 60 degrees. This is significantly smaller than the ideal bond angle of approximately 109.5 degrees in a tetrahedral geometry. The compressed bond angles create significant strain, known as bond angle strain.

Torsional Strain: The small size of the cyclopropane ring leads to significant torsional strain. In a planar cyclopropane molecule, the carbon-hydrogen (C-H) bonds are forced into unfavorable interactions, causing strain and destabilizing the molecule.

Steric Strain: The three carbon atoms in cyclopropane are forced to be in close proximity to each other due to the small ring size. This results in steric strain, where the bulky groups or atoms present on the carbon atoms experience repulsive interactions, leading to additional strain energy.

These factors collectively contribute to the high strain in cyclopropane, making it a highly reactive and unstable molecule. The strain energy must be overcome to break the strained bonds and convert cyclopropane into a more stable configuration.

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Answer:

When 3.85 moles of HCl react with excess aluminum, the balanced equation is as follows:

2Al + 6HCl → 2AlCl3 + 3H2

To solve for the number of moles of H2 gas released, we can use a conversion factor that multiplies the number of moles of HCl by the coefficient for H2 on the product side (3).

3.85 moles of HCl x (3 moles of H2 / 6 moles of HCl) = 2.9 moles of H2

Therefore, when 3.85 moles of HCl react with excess aluminum, 2.9 moles of H2 gas are released.

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\ \)

mass = 25 kg = 25000 g

\(volume = \frac{2500}{8.96} \\ = 2790.17....\)

= 2790 cm³

But 1000 cm³ = 1 L

2790 cm³ = 2.79 L

We have the final answer as

Hope this helps you

Decimal number to its equivalent in scientific notation: 15 = 1.5 × 102, 0.015 = 1.5 × 10-2, 0.15 = 1.5 × 10-1, 150 = 1.5 × 101 and 1.5 = 1.5 × 100.

Notation is a system of symbols used to represent a set of ideas or concepts. It is used to communicate complex musical, mathematical, and scientific concepts. Notation helps to make information easier to understand and is widely used in many fields. Notation can range from simple symbols such as musical notes, to complex formulas and equations used in mathematics and science. It allows for the efficient and organized communication of ideas and can be used to represent abstract concepts. Notation makes it easier to understand and learn complex topics, and is an important tool for communication.

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Complete Question:

Match each decimal number to its equivalent in scientific notation
15
1.5
0.015
0.15
150
1.5 × 10-2
1.5 × 101
1.5 × 102
1.5 × 100
1.5 × 10-1

Answer:

1,1,1,1

Explanation:

Answer:

Mouth

Esophagus

Stomach

The small intestine

Colon (large intestine)

Rectum

The tetrahedral structure that forms the backbone of all silicate minerals is composed of silicon and option(b) i.e, oxygen

The tetrahedron-shaped silica chemical structure. It comprises a core silicon atom that connects with four oxygen atoms on both sides. The tetrahedron-shaped geometric figure that is drawn around this configuration has four sides, each of which is an equilateral triangle.

Silicon and oxygen make up the silica tetrahedron, which serves as the base for all silicate crystals. In all sorts of rocks and everywhere in the world, the mineral quartz, SiO2, is formed. In deposited rocks, it manifests as sand grains, in igneous and metamorphic rocks, as crystals, and in veins that cut through all different types of rocks. These veins occasionally contain gold or other precious metals. It is widely known that up until the late 1700s, it was simply known as rock crystal. Quarts belong to a class of minerals known as silicates, all of which include silicon and oxygen in varying amounts. The majority of the minerals in the crust of the planet are silicates, and most estimates place 97 percent of the mantle and 95 percent of the crust in the crust.

The complete question is:  

The silica tetrahedron that forms the backbone of all the silicate minerals is composed of silicon and what other element?

a. magnesium c. iron

b. oxygen d. carbon

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Answer:

6. 350kg

7. 800kg

8.600 meters

Explanation: I don’t like Stealing point but this is what I think I should give you and I don’t know how your teacher learn you this...

Answer:

6 is 350kg

7 is 800kg

8 is 600 meters

Explanation:

Thanks btw

Answer:true

Explanation:

Answer:

Kim Sam Mi Da!!

Explanation:

Da Mi Sam Kim!!

Answer:

chloroplasts

Explanation:

chloroplasts are what make plants green, they are not included in animal cells

a) (i) The diluted solution has a volume of 500.0 ml and a concentration of hydroxide ions of 13.25. The concentration of hydroxide ions (C) can be found using the formula:

C = 10^(pH-14)

Thus,

C = 10^(13.25-14) = 10^(-0.75) = 0.0562 M

(ii) The original solution has a volume of 200.0 ml and a concentration of hydroxide ions of 0.0562 M. We can find the original concentration (C1) from the dilution formula:

C1 = (C * V2) / V1

Where

C = 0.0562 M

V1 = 200.0 ml = 0.200 L

V2 = 5.00 ml = 0.005 L

Thus,

C1 = (0.0562 * 0.005) / 0.200 = 0.0562 * 0.025 = 0.1405 M

b) The moles of hydroxide ions in the original solution can be found using the concentration and volume:

moles = C * V = 0.1405 * 0.200 = 0.0281 moles

The moles of NaOH can be found using the balanced equation:

NaOH + H2O → Na+ + OH-

Since one mole of NaOH generates one mole of hydroxide ions, the moles of NaOH can be found from the moles of hydroxide ions:

moles of NaOH = 0.0281 moles

The mass of NaOH can be found in the moles and the molar mass:

mass = moles * molar mass = 0.0281 * 40.0 g/mol = 1.1244 g

Thus, 1.1244 g of NaOH was added to the first flask.

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The temperature is 250 K.

The law that the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature of the gas and the universal gas constant.

By  ideal gas law , PV = nRT

P = 10 atm

V = 5 l

n = 2.5 mol

R = 0.0821 atm liter mol⁻¹ K⁻¹

T = Temperature is to find out according to question.

Put these values in PV = nRT

PV = nRT

10 × 5 = 2.5 × 0.0821 × T

T = 50/0.2

T = 250 K

Hence, the temperature is 250 K.

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