At $2.186/gallon, how many pennies would it cost to buy 125 L of gasoline? (1 gallon =
128 oz, 1 oz= 29.6 mL)


PLS HELPPPP

Answer:

I don't really understand the first question but the second question answer is they do not live in the Artic Tundra because they are cold blooded and need hot habitats to survive.

Explanation:

The Arctic Tundra is cold and snakes need warm temps to survive because they are cold blooded.

A decomposition reaction occurs when one reactant breaks down into two or more products. It can be represented by the general equation: AB → A + B. In this equation, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction.

RbCI = rubidium chloride

Control group is used to establish causality by isolating the effect of an independent variable.

Control group can be defined as any group used as a control in a statistical experiment, extrasensory perception a group of patients who receive either a placebo or a standard drug during an investigation of the effects of another drug on other patients.

Therefore control groups are an important aspect of true experimental designs. The presence of control groups allows researchers to confirm that study results are due to the manipulation of independent variables (IVs) rather than extraneous variables

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There are approximately 0.4495 moles of methane in a 7.21 gram sample. To calculate the number of moles of methane in a given sample, you need to divide the mass of the sample by the molar mass of methane.

The molar mass of methane (CH4) can be calculated by summing up the atomic masses of its constituent elements:

Molar mass of C (carbon) = 12.01 g/mol

Molar mass of H (hydrogen) = 1.008 g/mol

Molar mass of methane (CH4) = (1 × Molar mass of C) + (4 × Molar mass of H)

= (1 × 12.01 g/mol) + (4 × 1.008 g/mol)

= 16.04 g/mol

Now, we can calculate the number of moles of methane using the following formula:

Number of moles = Mass of sample / Molar mass

Plugging in the values:

Number of moles = 7.21 g / 16.04 g/mol

≈ 0.4495 mol (rounded to four decimal places)

Therefore, there are approximately 0.4495 moles of methane in a 7.21 gram sample.

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The molar concentration of Al(OH)₃ in the solution is 1.61 M.

we need to calculate the number of moles of Al(OH)3 in the solution:

Number of moles of Al(OH)₃ = mass of Al(OH)3 / molar mass of Al(OH)3

Molar mass of Al(OH)₃ = (1 x atomic mass of Al) + (3 x atomic mass of O) + (3 x atomic mass of H)

Molar mass of Al(OH)₃ = (1 x 26.98 g/mol) + (3 x 16.00 g/mol) + (3 x 1.01 g/mol) = 78.00 g/mol

Number of moles of Al(OH)₃ = 62.7 g / 78.00 g/mol = 0.804 moles

Next, we need to calculate the volume of the solution in liters:

Volume of solution = 500.0 mL = 500.0 mL x (1 L/1000 mL) = 0.500 L

Finally, we can calculate the molar concentration of Al(OH)₃

Molarity = moles of solute/volume of solution in liters

Molarity = 0.804 moles / 0.500 L = 1.61 M

Therefore, the molar concentration of Al(OH)₃ in the solution is 1.61 M.

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Answer:

kcgiobb jkffiob hffyio hiiddhoo hhioiv

Answer: Have a blessed day

Explanation:

Water Cycle: Component # 1. Evaporation:

Evaporation is the process where a liquid changes from its liquid state to a gaseous state. Liquid water becomes water vapour. Temperature is the primary factor for evaporation.

During the water cycle the water of the oceans and freshwater bodies, such as lakes and rivers, is warmed by the sun and evaporates. During the process of evaporation, impurities in the water are left behind. As a result, the water that goes into the atmosphere is cleaner than it was on Earth.

Water Cycle: Component # 2. Condensation:

Condensation is the opposite of evaporation. Condensation is the process where a gas is changed into a liquid. Condensation occurs when the temperature of the vapour decreases.

The water droplets formed from condensation are very small and they remain suspended in the atmosphere. There millions of droplets of suspended water form clouds in the sky or fog at ground level. Water condenses into droplets only when there are small dusts particles present around.

Water Cycle: Component # 3. Precipitation:

When the temperature and atmospheric pressure are right, the small droplets of water in clouds form larger droplets or raindrops and it is called precipitation. The raindrops fall to earth.

As a result of evaporation, condensation and precipitation, water travels from the surface of the Earth goes into the atmosphere, and returns to Earth again.

Water Cycle: Component # 4. Surface Runoff:

Much of the water that returns to Earth as precipitation runs off the surface of the land and flows down-hill into streams, rivers, ponds and lakes. Small streams flow into the ocean. Surface runoff is an important part of the water cycle because, through surface runoff, much of the water returns again to the oceans, where a great deal of evaporation occurs.

Water Cycle: Component # 5. Infiltration:

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Infiltration is an important process where rain water soaks into the ground, through the soil and underlying rock layers. Some of this water ultimately returns to the surface at springs or in low spots downhill. Some of the water remains underground and is called groundwater.

As the water infiltrates through the soil and rock layers, many of the impurities in the water are filtered out. This filtering process helps in cleaning of the water.

Water Cycle: Component # 6. Transpiration or Evapotranspiration:

This is performed by plants. As plants absorb water from the soil, the water moves from the roots through the stems to the leaves. Once the water reaches the leaves, some of it evaporates from the leaves, adding to the amount of water vapour in the air. This process of evaporation through plant leaves is called transpiration. In large forests, an enormous amount of water will transpire through leaves.

Answer:

the two major sources of energy for the rock cycle are also shown; the sun provides energy for surface processes such as weathering, erosion, and transport, and the Earth's internal heat provides energy for processes like subduction, melting, and metamorphism.

Answer:

Shaggy off the today science ka sara kam yyyyyy the today science and technology y rocks and minerals and vitamins a

11.2L is the total volume of O\(_2\) produced when 1 mole of PbO decomposes at STP for reaction 2 PbO(s) → 2 Pb(s) + O\(_2\)(g).

Lead(II) oxide, often known as lead monoxide, is an inorganic chemical having the formula PbO. PbO exists in two polymorphs: litharge, which has a tetragonal crystalline structure, as well as massicot, which has an orthorhombic crystalline structure.

The majority of modern PbO uses are already in lead-based commercial glass as well as industrial ceramics, particularly computer components. It is a kind of amphoteric oxide.

2 PbO(s) → 2 Pb(s) + O\(_2\)(g)

mole of PbO =1 mole

the mole ratio between PbO  and oxygen is 2:1

mole of oxygen = 0.5mole

volume of oxygen = mole of oxygen ×22.4L

                              = 0.5×22.4L

                              = 11.2L

Therefore,  11.2L is the total volume of O\(_2\) produced when 1 mole of PbO decomposes at STP.

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Answer:

May 17

Explanation:

When it refers to 0% light it describe a new moon, from a new moon to a full Moon are 14 days, then if you start a full moon on May 3 and you add 14 days it means that the next new Moon would be on May 17.

A characteristic property of metals, non-metals, and metalloids is that if a metal is an electropositive element (as a positive ion), it can generally form basic compounds and ionic compounds. Meanwhile, non-metallic elements exhibit properties that are opposite to those of metals and metalloid elements that have a low level of metallic behavior.

Metal or metal elements are elements that have general physical properties such as being solid, having a high melting point, flexible (not easily broken), easy to shape (can be forged and pulled), good conductors of heat and electricity, and can be alloyed with each other. metal. While its chemical properties include electropositive elements (as positive ions), generally it can form basic compounds and ionic compounds.

Non-metallic elements are groups of elements that exhibit properties that are opposite to those of metals, Group that has almost no metallic properties; a group of elements whose properties include: not hard, not tough (brittle and easily broken), can conduct heat and electricity, and has a low melting point.

Metalloids are elements that have a low degree of metallic behavior. Metalloids exhibit some metallic and some nonmetallic properties. The appearance of metalloids can be dull or shiny. Although they are not very good thermal and electrical conductors, metalloids are capable of conducting heat and electricity.

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Answer: 44

Explanation: Because it's easy

To make a 50.0 mL solution of 1.7 M sodium carbonate (Na₂CO3), we need to determine the mass of Na₂CO3 required.

To calculate the mass of Na₂CO3 needed, we can use the formula:

Mass = Concentration x Volume x Molar Mass

First, we convert the given volume from milliliters to liters:

Volume = 50.0 mL = 50.0/1000 L = 0.05 L

Next, we substitute the given concentration and volume values into the formula:

Mass = 1.7 M x 0.05 L x Molar Mass of Na₂CO3

The molar mass of Na₂CO3 can be calculated by adding the atomic masses of sodium (Na), carbon (C), and three oxygen (O) atoms:

Molar Mass of Na₂CO3 = (2 x Atomic Mass of Na) + Atomic Mass of C + (3 x Atomic Mass of O)

After obtaining the molar mass value, we can substitute it into the formula and perform the calculation to determine the mass of Na₂CO3 required to make the 50.0 mL solution of 1.7 M sodium carbonate.

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Answer: physical change

Explanation:

The answer to the question is 0.8055 as the answer should not include units in it.

Molarity (M) = n/v

n = moles of solute

v = liters of solution

According to question

1% solution → 1 gram of solute for 100 milliliters of solution

2% solution → 2 grams of solute for 100 milliliters of solution

6% NaClO solution → 6 grams of NaClO (solute) for 100 milliliters of solution

Molar mass of NaClO = (22.98 + 35.5 + 16)g/mol = 74.48 g/mol

Atomic mass of Na = 22.98 g/mol

Atomic mass of Cl = 35.5 g/mol

Atomic mass of O = 16 g/mol

1 mol NaClO = 74.48 grams NaClO

74.48 grams NaClO = 1 mol NaClO

6 grams NaClO = (1×6) / 74.48 mole = 0.08055 mole

As unit molarity is mole / liter

So 100 milliliters = 0.1 liters

1 liter = 1000 milliliters

100 milliliters = 100/1000 liters = 0.1 liters

Molarity of NaClO = moles of solute (NaClO) / liters of solution or volume of solution

Molarity of NaClO = 0.08055 / 0.1 mole/L =  0.8055 mole/L

As in question it is mentioned that 'Do not type units into your answer'

So, Molarity of NaClO in clorox bleach = 0.8055

Thus we find out the value of molarity of NaClO in Clorox bleach which came out to be 0.8055 as we dont have to give the answer with units.

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Answer:

Any individual offspring produced through asexual reproduction is always: genetically identical to its parent. made up of cells with a cell wall. different from all of its siblings

Answer:  2.25 moles of C, 40.6 grams of Sb, 77%, and

Answer: 2.25 moles of C

Explanation: To answer this question, we need to use a mole ratio, which is a stoichiometric relationship between the amounts in moles of any two substances in a chemical reaction. The balanced equation for the reaction is:

\ce {C} (s) + \ce {O2} (g) \rightarrow \ce {CO} (g) + \ce {CO2} (g) C(s) + OX 2(g) → CO(g) + COX 2(g)

The mole ratio between C and CO is 1:1, which means that for every mole of C that reacts, one mole of CO is produced. Therefore, to produce 4.5 moles of CO, we need 4.5 moles of C.

Answer: 40.6 grams of Sb

Explanation: To answer this question, we need to use composition stoichiometry, which is the calculation of quantities by weight in a reaction described by a balanced equation. The balanced equation for the reaction is:

\ce {Sb2O3} (s) + \ce {C} (s) \rightarrow \ce {Sb} (s) + \ce {CO} (g) SbX 2OX 3(s) + C(s) → Sb(s) + CO(g)

To find the mass of Sb produced from a given mass of SbX 2OX 3, we need to convert the mass of SbX 2OX 3 to moles using its molar mass, then use the mole ratio between SbX 2OX 3 and Sb to find the moles of Sb produced, and then convert the moles of Sb to mass using its molar mass. The molar masses of SbX 2OX 3 and Sb are 291.5 g/mol and 121.8 g/mol, respectively. The mole ratio between SbX 2OX 3 and Sb is 1:2, which means that for every mole of SbX 2OX 3 that reacts, two moles of Sb are produced.

Answer: 77%

Explanation: To answer this question, we need to use the concept of percent yield, which is the ratio of the actual yield (the amount of product obtained from a reaction) to the theoretical yield (the maximum amount of product that can be obtained from a reaction) expressed as a percentage. The balanced equation for the reaction is:

\ce {Sb2O3} (s) + \ce {C} (s) \rightarrow \ce {Sb} (s) + \ce {CO} (g) SbX 2OX 3(s) + C(s) → Sb(s) + CO(g)

Answer: C is the limiting reagent

Explanation: To answer this question, we need to use the concept of limiting reagent, which is the reactant that is completely used up in a reaction and thus determines when the reaction stops. The balanced equation for the reaction is:

\ce {Sb2O3} (s) + \ce {C} (s) \rightarrow \ce {Sb} (s) + \ce {CO} (g) SbX 2OX 3(s) + C(s) → Sb(s) + CO(g)

To find the limiting reagent, we need to compare the amounts of SbX 2OX 3 and C in moles and use the mole ratio between them from the balanced equation. The mole ratio between SbX 2OX 3 and C is 1:1, which means that for every mole of SbX 2OX 3 that reacts, one mole of C is needed. Therefore, if we have more moles of one reactant than the other, that reactant is in excess and the other one is limiting. To find the moles of SbX 2OX 3 and C, we need to use their molar masses. The molar masses of SbX 2OX 3 and C are 291.5 g/mol and 12.0 g/mol, respectively.

Since we have more moles of C than SbX 2OX 3, C is in excess and SbX 2OX 3 is limiting. However, another way to find the limiting reagent is to use a formula based on the mole ratio:

Limiting Reagent Formula

Since 0.213 < 2.75, SbX 2OX 3 is the limiting reagent.

Hope this helps, and have a great day! =)

On the periodic table, argon has an average atomic weight of 39.948 amu. This number is really near 40. This suggests that Ar-40 is the isotope of argon (Ar) that is most prevalent in the natural world.

If all three argon atoms are neutral, they would each contain 18 protons and 18 electrons. In comparison to one another, the three isotopes will each have a distinct number of neutrons (18, 20, and 22 neutrons respectively).

Atomic number, not atomic mass, is used to categorise the elements. As the atomic number of argon (18) is less than that of potassium (19)

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The statement “The products obtained by the acid-catalyzed hydration of 1-methylcyclohexene and methylenecyclohexene are identical” is not true.

Acid-catalyzed hydration is a chemical reaction that transforms an alkene to an alcohol by adding water.

For instance, in the following reaction, 2-methylpropene reacts with water, with the aid of sulfuric acid, to give the alcohol tert-butyl alcohol.

In general, acid-catalyzed hydration of an alkene takes place via a mechanism known as a Markovnikov addition. When an unsymmetrical alkene is hydrated using H2SO4 and H2O, a mixture of products is usually produced. This is because of the differing stabilities of the carbocation intermediates formed during the reaction. This is referred to as carbocation rearrangement.

A simple example of carbocation rearrangement can be seen in the hydration of 1-methylcyclohexene. It produces two isomeric products: 1-methylcyclohexanol and 3-methylcyclohexanol.

Methylcyclohexene undergoes acid-catalyzed hydration to form a mixture of 1-methylcyclohexanol and 3-methylcyclohexanol. Methylenecyclohexene, on the other hand, yields only cyclohexanol during hydration.

Thus, the given statement is false.

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To determine if MgCO3 will precipitate from the solution, we need to compare the ion product (Q) with the solubility product (Ksp) of MgCO3. The ion product (Q) is calculated by multiplying the concentrations of the ions involved in the dissociation of MgCO3.

The balanced equation for the dissociation of MgCO3 is:

MgCO3(s) ⇌ Mg2+(aq) + CO32-(aq) Given that the concentration of Mg2+ is 1.5×10^−3 M, we can calculate the concentration of CO32- using stoichiometry. Since 1 mole of MgCO3 dissociates to give 1 mole of Mg2+ and 1 mole of CO32-, the concentration of CO32- is also 1.5×10^−3 M.

The ion product (Q) is then calculated as:

Q = [Mg2+][CO32-] = (1.5×10^−3 M)(1.5×10^−3 M) = 2.25×10^−6

Comparing Q with the solubility product (Ksp) of MgCO3 (6.82×10^−6), we find that Q < Ksp. This means that the ion product is smaller than the solubility product, indicating that no MgCO3 will precipitate from the solution. Therefore, based on the given concentrations and the solubility product of MgCO3, no MgCO3 will precipitate from the solution when 50.0 mg of Na2CO3 is added to 150.0 ml of the solution.

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The reaction equation is PbS+4H2O2→PbSO4+4H2O

This is a redox reaction where the hydrogen peroxide (H2O2) acts as an oxidizing agent, and the lead sulfide (PbS) is oxidized to form lead sulfate (PbSO4). The hydrogen peroxide is reduced to form water (H2O). The reaction produces a white precipitate of lead sulfate, which is insoluble in water and can be easily separated from the reaction mixture.

It is worth noting that the reaction between lead sulfide and hydrogen peroxide may not occur spontaneously, and a catalyst may be needed to initiate the reaction.

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Missing parts;

using equation explain what happens when hydrogen peroxide is added to lead​ sulfide

A unit of that compound comprises one atom of that element if the symbol for that element in the chemical formula does not have a subscript after it.

A chemical formula is a phrase that lists all of the constituent parts of a compound together with their interrelated ratios. There is no need for a subscript if there is just one atom of a certain kind. A subscript is counted to the symbol for an atom if it includes two or more of a certain type of atom.

An element has one atom present when its symbol is authored without a subscript following it. There are two atoms of that element present if the number 2 is depicted. Subscripts are important. When the subscript is changed, the content is also altered.

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Answer:

Land plants are also known as Embryophytes. Embryophytes are complex multicellular eukaryotes with specialized reproductive organs. The name derives from their innovative characteristic of nurturing the young embryo sporophyte during the early stages of its multicellular development within the tissues of the parent gametophyte.

Explanation:

Answer:

there used for mountains , wait I'm just trynna get points ya feel me

Explanation:

The element that probably forms a compound with hydrogen that has a chemical formula most and least similar to the chemical formula of the compound formed by hydrogen and selenium is sulfur.

Sulfur is in the same group as selenium, which means they have similar chemical properties. Therefore, sulfur would most likely form a compound with hydrogen that has a chemical formula similar to hydrogen selenide (H₂Se), the compound formed by hydrogen and selenium. On the other hand, chlorine and fluorine are both highly reactive nonmetals that would not likely form compounds with hydrogen in a similar way to selenium.

Potassium is a highly reactive metal and would not likely form a compound with hydrogen in a similar way to selenium either.

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Atoms will move from side to side and parallel to the direction of the incoming wave due to the action of the light wave.

In a vacuum, light waves can move. Sound waves cannot move in a vacuum because they need a physical medium to do so.

So what type of wave is sound. Pressure waves, mechanical waves, and longitudinal waves are the three different types of sound waves. Continue reading to learn what makes them what they are.

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The following units indicate these quantities:

1.  mL- Volume

2. cm^2- Area

3. mm^3- volume

4. mg/L- Concentration

5. ps- Time

6. nm- Length

7. K- Temprature

- mL: This unit indicates volume, specifically the volume of liquid or fluid in milliliters.

- cm^2: This unit indicates area, specifically the area of a two-dimensional object in square centimeters.

- mm^3: This unit indicates volume, specifically the volume of a three-dimensional object in cubic millimeters.

- mg/L: This unit indicates concentration, specifically the concentration of a substance in milligrams per liter of solution.

- ps: This unit indicates time, specifically time measured in picoseconds (one trillionth of a second).

- nm: This unit indicates length, specifically the length of an object in nanometers (one billionth of a meter).

- K: This unit indicates temperature, specifically temperature measured in kelvins, which is a unit of temperature that starts at absolute zero (the coldest possible temperature).

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Given :

pH of solution of mixture of lactic acid and lactate is 4.26 .

To Find : \(log( \dfrac{[ \text{Conc. of lactate}]}{[\text{Conc . of lactic acid }]}) = 0.4\)

The ratio of the lactate concentration to the lactate .

Solution :

We know , pKa of lactic acid is :

pKa = 3.86 .

Now , the solution of lactic acid and lactate is a buffer solution .

So , pHof buffer acid is given by :

\(pH=pKa+log(\dfrac{[Salt]}{[Acid]})\)

Putting all given values :

\(log( \dfrac{[ \text{Conc. of lactate}]}{[\text{Conc . of lactic acid }]}) = 0.4\)

Taking anti log both the sides , we get :

\(\dfrac{[ \text{Conc. of lactate}]}{[\text{Conc . of lactic acid }]} = 2.51\)

Therefore , the ratio of the lactate concentration to the lactate is 2.51 .

Hence , this is the required solution .

Lubricant decrease friction by causing a slight separation between solid surfaces, so they don't contact each other.

A lubricant, also known as lube or lubrication, is a chemical that aids in reducing friction between surfaces in contact, hence lowering the heat produced when the surfaces move. Additionally, it might be used for force transmission, the transportation of foreign objects, or the heating or cooling of surfaces.

The body's sliding surfaces are robust in part due to lubricin, a little-known protein that serves as nature's most efficient "grease." The body's most potent boundary lubricant, lubricin was found to coat the surfaces of joint cartilage.

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The complete question is -

____ decrease friction by causing a slight separation between solid surfaces, so they don't contact each other.