The particles of a liquid are able to move around each other. What property of a liquid does this behavior create?

Answer:

candles

Explanation:

if u burn these fruits, it is obvious that there will be ashes but the key hint here is

" retaining the smell"

and what are things that smell and can be fruit scented?

a..... CANDLE

hope this helped :D

Answer:

BY BURNING A CANDLE WITH ITS SCENT

Explanation:

It would require approximately 1244.8 joules of energy to heat the 120g cube of lead from 0℃ to 80℃.

Q = m x c x ΔT

Where:

Q is the energy (in joules)

m is the mass of the lead (in grams)

c is the specific heat of lead (in J/g℃)

ΔT is the change in temperature (in ℃)

Given:

Mass of lead (m) = 120g

Specific heat of lead (c) = 0.129 J/g℃

Change in temperature (ΔT) = 80℃ - 0℃ = 80℃

Now, we can substitute these values into the formula:

Q = 120g x 0.129 J/g℃ x 80℃

Q = 1244.8 J

Therefore, the correct answer is 1244.8 joules.

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Answer:

No

Explanation:

It is not a serious condition because people who have it don't face any life threatening, or even health threatening symptoms. The only bad symptoms that a person can have are diarrhea, gas, or bloating, which are all pretty uncomfortable, but aren't serious things.

-Hope this helped & Happy Holidays!

Answer: because of gravity

Explanation: gravity is the thing that holds us on the earth. without it, we would be dead and our bodies would be floating in space.

Answer:Gravity

Explanation: It pull you back down

The percentage weight of a solution containing 3.23 g NaCl in 77 g of the solution is 4.02%.

Mass Percent Concentration (mass %) = mass of solute (g) ÷ mass of solution (g) × 100%

To find the mass percent concentration of NaCl in a solution, divide the mass of the solute (NaCl) by the mass of the solution and then multiply by 100 to get the percentage.

The mass of NaCl in the solution is given as 3.23 g, while the mass of the entire solution is 77 g.

Percent weight = mass of solute ÷ mass of solution × 100% = 3.23 g ÷ 77 g × 100% = 0.0402 × 100% = 4.02%

Therefore, the percentage weight of the solution is 4.02%.

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Using only 28.02 g/mol as a conversion factor, we can:

Calculate the grams of N₂ in 5.03 × 10²⁰ moles of nitrogen gas.

Calculate the moles of N₂ molecules in 3.94 grams of nitrogen gas.

We want to identify the conversion factors required in a series of calculations:

A conversion factor is an arithmetical multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another.

28.02 g/mol, which is the molar mass of nitrogen, is a conversion factor to convert moles to mass and vice versa.

Calculate the grams of N₂ in 10.58 L of nitrogen gas.

We want to convert 10.58 L (volume) to grams (mass). We need to conversion factors:

22.4 L/mol is the conversion factor to convert volume to moles.

28.02 g/mol is the conversion factor to convert moles to mass.

Calculate the grams of N₂ in 5.03 × 10²⁰ moles of nitrogen gas.

We want to convert 5.03 × 10²⁰ moles (moles) to grams (mass). We can do so by just using 28.02 g/mol as the conversion factor.

Calculate the moles of N₂ molecules in 3.94 grams of nitrogen gas.

We want to convert 3.94 grams (mass) to moles. We can do so by just using 28.02 g/mol as the conversion factor.

Calculate the moles of N₂ molecules in 4.73 L of nitrogen gas.

We want to convert 4.73 L (volume) to moles. The required conversion factor is 22.4 L/mol.

Using only 28.02 g/mol as a conversion factor, we can:

Calculate the grams of N₂ in 5.03 × 10²⁰ moles of nitrogen gas.

Calculate the moles of N₂ molecules in 3.94 grams of nitrogen gas.

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In a vacuum, water boils at a lower temperature because the vapor pressure is lower. As a result, the boiling point of a substance is directly related to the pressure exerted on it. Therefore, pressure has an effect on boiling point.

The pressure has an effect on boiling point because pressure affects the boiling point of a substance.Boiling point is the temperature at which a liquid boils and turns into a gas. It is dependent on the pressure of the surrounding environment. A substance will boil when its vapor pressure equals the external pressure. When the external pressure is lower than the vapor pressure of the substance, it will boil at a lower temperature than usual. When the external pressure is higher than the vapor pressure of the substance, it will boil at a higher temperature than usual. In a vacuum, water boils at a lower temperature because the vapor pressure is lower. As a result, the boiling point of a substance is directly related to the pressure exerted on it. Therefore, pressure has an effect on boiling point.

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Answer:

Answer choice c  = 174

Explanation:

If you divide 30% into 580 you get 174. You can also check your work by doing 580 divided by 70%

30% divided by 580 = 174

Methane reacts with oxygen gas according to the combustion reaction below. If 7.4 moles of CH4 gas are burned, how many moles of CO2 are produced -  Moles of CO2 Produced

According to the balanced chemical equation for the combustion of methane, one mole of methane reacts with two moles of oxygen to produce one mole of carbon dioxide and two moles of water. Therefore, we can set up a proportion to find the number of moles of carbon dioxide produced when 7.4 moles of methane are burned:

1 mole CH4 : 1 mole CO2

7.4 moles CH4 : x moles CO2

Solving for x, we get:

x = 7.4 moles CH4 x 1 mole CO2 / 1 mole CH4 = 7.4 moles CO2

Therefore, when 7.4 moles of methane are burned, 7.4 moles of carbon dioxide are produced.

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Answer:

the answer is....... D. Plasma

Answer:

Plasma

Explanation:

Got it right

The formula for tetrasilicon heptabromide is Si₄Br₇.

Chemical formula, also called molecular formula is a notation indicating the number of atoms of each element present in a compound.

The chemical formula of a substance reveals the type and number of elements in the compound. According to this question, a chemical compound named tetrasilicon heptabromide is given.

Based on the nomenclature of the compound, it can be said that it is made up of four atoms of silicon and seven atoms of bromine, hence, the chemical formula is given thus: Si₄Br₇.

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Answer:

Using blue and red litmus paper.

Explanation:

if we test all the solutions with blue and red litmus paper, we will know which solution is water and which solution is not water because blue and red litmus paper determined the pH of the solution. The pH of the water is neutral so it can't change its colour while on the other hand, the other solution change their colour due to acidic or basic nature of the solution so in this way we can determine the chemicals in the solution without tasting it.

Answer:

Producers.

Explanation:

Since the source of energy is the sun, the trophic level representing producers contains the most energy.

Answer: Thomson - Electrons

Rutherford - Nucleus

Bohr - Electron energy levels

Explanation: I just took the quiz

Answer:

Answer: Thomson - Electrons

Rutherford - Nucleus

Bohr - Electron energy levels

In water, ionic substances dissolve quickly. This sentence outlines how water molecules are polar nature. A polar covalent molecule is water.

Due to the unequal sharing of electrons between the atoms and the molecule's (side) asymmetrical structure, a water molecule has two poles: a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole. The water molecule has a curved form, which means that the majority of the negative charge from the oxygen is on one side of the molecule and on the other atoms positive charge from hydrogen is present. As a result, the water molecule can be described as polar.

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Dehydration synthesis is a type of chemical reaction in which two molecules are joined together by the removal of a water molecule. This type of reaction is often used to build polymers from monomers.

In dehydration synthesis, a hydrogen atom from one monomer is joined to an oxygen atom from another monomer, with the release of a water molecule. This reaction is also known as condensation reaction.

Dehydration synthesis is a reversible reaction, meaning that the polymer can be broken down into its monomers by adding water. This is important for the body to be able to break down and recycle macromolecules.

2. Name the specific covalent bond formed between monomers (subunits) of:

Amino acids: The specific covalent bond formed between amino acids is called a peptide bond. The peptide bond is formed by the condensation of two amino acids, with the release of a water molecule.

Monosaccharides: The specific covalent bond formed between monosaccharides is called a glycosidic bond. The glycosidic bond is formed by the condensation of two monosaccharides, with the release of a water molecule.

Nucleotides: The specific covalent bond formed between nucleotides is called a phosphodiester bond. The phosphodiester bond is formed by the condensation of three nucleotides, with the release of two water molecules.

The peptide bond is the main type of bond that holds amino acids together in proteins. The glycosidic bond is the main type of bond that holds monosaccharides together in carbohydrates. The phosphodiester bond is the main type of bond that holds nucleotides together in nucleic acids.

These bonds are all covalent bonds, which means that they are formed by the sharing of electrons between atoms. The strength of these bonds varies, but they are all strong enough to hold the monomers together in the polymers.

The specific type of covalent bond that is formed between monomers depends on the type of polymer. For example, the peptide bond is only formed between amino acids, while the glycosidic bond is only formed between monosaccharides.

The formation of these covalent bonds is an important part of the synthesis of macromolecules. These bonds are what give macromolecules their structure and their properties.

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Answer:

Six

Explanation:

Mᵣ                           =  46

Aᵣ(C) = 0.522 × 46 =  24

Difference              =  22

Less 1 O                  = -16

Aᵣ(H)                        =   6

The relative atomic mass of the H atoms is 6.

The molecule contains six hydrogen atoms.

Answer:

A

Explanation:

The law of diminishing marginal rate of substitution indicates that the rate at which one input can be substituted for another decreases as the quantity of one input increases, leading to isoquants being bent toward the origin.

In other words, as the quantity of one good increases, the individual is willing to sacrifice fewer units of the other good to obtain an additional unit of the first good. This reflects a diminishing rate of substitution between the two goods.

The reason why the law of diminishing marginal rate of substitution suggests that isoquants must be bent toward the origin is rooted in the concept of diminishing marginal utility. As more units of a particular input (e.g., labor or capital) are added while holding other inputs constant, the additional output gained from each additional unit of the input will decrease. This diminishing marginal productivity leads to a decreasing MRS.

When isoquants (which represent different combinations of inputs that produce the same level of output) are bent toward the origin, it reflects the fact that as more of one input is used, the amount of the other input that needs to be substituted decreases. This bending signifies the diminishing MRS and captures the idea that a larger quantity of one input can be substituted for a smaller quantity of the other input to maintain the same level of output.

Overall, the law of diminishing marginal rate of substitution indicates that the rate at which one input can be substituted for another decreases as the quantity of one input increases, leading to isoquants being bent toward the origin.

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The empirical formula for the ccompound, given the data is C₇H₈

The mass OC carbon in the compound can be obtained as follow:

Mass of C = (12 / 44) × 4.10

Mass of C = 1.118 mg

Mass of H = (2 / 18) × 0.959

Mass of H = 0.107 mg

The empirical formula can be obtained as follow:

Divide by their molar mass

C = 1.118 / 12 = 0.093

H = 0.107 / 1 = 0.107

Divide by the smallest

C = 0.093 / 0.093 = 1

H = 0.107 / 0.093 = 1.15

Multiply through by 7 to express in whole number

C = 1 × 7 = 7

H = 1.15 × 7 = 8

Thus, the empirical formula of the compound is C₇H₈

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The substance in the image above would be classified as a mixture of elements (option E).

A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.

On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.

According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.

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From the given data of chemical compounds, 5.32 grams of W and 2.66 grams of X are needed.

The following calculation must be done to determine how much W and X is needed to make the necessary amount of Z because it takes 8 grammes of a chemical compound called Z to make it, and Z is made from compounds W, X, and Y in the ratios of 2: 1: 3 and Y is itself made from W and X, and to make 6 grams of Y requires 4 grams of W and 2 grammes of X.

8/6 = 1.33

The resulting ratio is 2.66 : 2.33  :3:99.

3.99 = w

3.99 x 4/6 = 2.66

1.33 grams of X are equal to 2.66 grams of W.

2.66 x 2 = 5.32

1.33 x 2 = 2.66

5.32 grams of W and 2.66 grams of X are therefore needed.

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Answer: it’s not A3X3

Explanation:

1. AX

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The dissociation factor is 2 and the freezing point of the solution is -64.5 °C.

Sodium chloride is a 2-ion electrolyte, dissociating 90% in a certain concentration.

(a) Calculation of dissociation factor

Dissociation factor can be defined as the ratio of the number of ions produced from a compound to the number of molecules dissolved. This factor determines the degree to which an electrolyte dissociates in water.

Sodium chloride dissociates into Na⁺ and Cl⁻ ionsNaCl → Na⁺ + Cl⁻

The dissociation factor of Sodium Chloride is given by the expression;

α = [Total number of ions produced] / [Total number of molecules]

α = [2] / [1]α = 2

(b) Calculation of the freezing point of a molal solution

Freezing point of the solution is given by;

ΔTf = iKfm

where ΔTf is the change in freezing point, i is the van't Hoff factor, Kf is the freezing point depression constant, and m is the molality of the solution.

Due to the dissociation of NaCl into Na⁺ and Cl⁻ ions, i will be equal to 2.

The freezing point depression constant for water is given as Kf = 1.86 °C/m.

Molality is defined as the number of moles of solute per kilogram of solvent. The molecular weight of NaCl is 58.44 g/mol. So, the number of moles in 1 kg of NaCl is:

1 kg of NaCl = 1000 g / 58.44 g/mol= 17.1 molal

Thus, ΔTf = 2 * 1.86 °C/m * 17.1 molal= 64.5 °C

Therefore, the freezing point of the solution is -64.5 °C.

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Answer:

d. Maderno’s plan

Explanation:

This is the final plan of the St. Peter’s Basilica, the plan of Carlo Maderno, who continued the plans of Michelangelo's plans by adding a nave and a narthex.

Bramante's plan was basically a square, roughly representing the top half of the image provided in the question.

It was modified by Michelangelo who added a section, then extended once more by Maderno who gave it this aspect.

The basilica was finished in 1626, 120 years after the construction began.

Answer:

The amount of isopropyl alcohol contained in 150 ml of the solution is 117.15 grams

Explanation:

The density of a substance is the mass per unit volume, therefore, we have;

The density of the isopropyl alcohol = 0.785 g/ml at 25°C

The  density = mass/volume

Mass = Density × Volume

The mass of the 150 ml of isopropyl alcohol is therefore;

Mass = 0.785 g/ml × 150 ml = 117.15 g

The amount in grams contained in 150 ml of sample = 117.15 g.

According to the balanced equation, 31.7 grams of nitrogen gas (N₂) reacting with excess hydrogen gas (H₂) will produce a 2.264 moles of ammonia gas (NH₃).

To determine the moles of ammonia formed, we need to convert the given mass of nitrogen gas to moles using its molar mass and the stoichiometric ratio of the balanced equation.

The molar mass of nitrogen gas (N₂) is 28.02 g/mol. To calculate the number of moles of nitrogen gas, we divide the given mass by its molar mass:

31.7 g / 28.02 g/mol = 1.132 mol

According to the stoichiometry of the balanced equation, the ratio between nitrogen gas and ammonia gas is 1:2. This means that for every 1 mole of nitrogen gas, 2 moles of ammonia gas are produced.

Therefore, using the stoichiometric ratio, we can determine the moles of ammonia formed:

1.132 mol N₂ * (2 mol NH₃ / 1 mol N₂) = 2.264 mol NH₃

Thus, upon the complete reaction of 31.7 grams of nitrogen gas with excess hydrogen gas, 2.264 moles of ammonia gas will be formed.

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Explanation:

The gas that would behave least ideally is CO

5) Convert molarity to percent, calculate moles of acetic acid, convert moles to grams, divide grams by volume in mL, multiply by 100 to obtain experimental percent, and calculate percent error.

6) Phenolphthalein could have been used as an alternative indicator.

7) When using barium hydroxide instead of sodium hydroxide, adjust the calculations by considering the stoichiometry of the reaction and using a molar ratio of 2:1 between acetic acid and barium hydroxide.

5. To calculate the percent error in the concentration of acetic acid, we need to convert our molarity (M) results to percent (%). Using the average molarity and the average volume (converted to liters) of acetic acid, we can calculate the number of moles of acetic acid.

Then, by converting moles to grams using the molar mass of acetic acid (CH3COOH), we can divide the grams of acetic acid by the average volume (in milliliters) of acetic acid and multiply by 100 to obtain the experimental percent.

Finally, we can calculate the percent error by comparing the experimental percent to the labeled percent (4% vinegar on the bottle).

6. An alternative indicator that could have been used is phenolphthalein. Phenolphthalein is commonly used in acid-base titrations and changes color in a specific pH range, indicating the endpoint of the reaction.

6. If barium hydroxide (Ba(OH)2) were used instead of sodium hydroxide (NaOH), the adjustment in calculations would involve the stoichiometry of the reaction. The balanced chemical equation for the reaction between acetic acid and barium hydroxide is:

2CH3COOH + Ba(OH)2 → Ba(CH3COO)2 + 2H2O

The molar ratio between acetic acid and barium hydroxide is 2:1. Therefore, the number of moles of barium hydroxide used would be half the number of moles of acetic acid in the calculation.

The rest of the procedure, including converting moles to grams and calculating the percent, would remain the same.

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