20) If a single gram of sugar contains 4 Calories of energy, what is the Calorie content from a serving of cereal that
contains 9.2 grams of sugar?

The answer responses to  the structures shown in the diagram are:

A. chromosomes

C. They would be the same.

B. They are in pairs because each one comes from a different parent.

The chromosomes are in pairs because humans have a diploid number of chromosomes, meaning they have two sets of chromosomes, one inherited from each parent.

The nucleus is important in eukaryotic cells and has many important parts that help the cell work properly. There are some parts inside cells called the nuclear membrane, nucleoplasm, nucleolus, and chromatin. Chromatin is made up of DNA and other proteins.

Every part of a person's body has the same genes, but the way they are organized can be different in different types of cells. The chromosomes in our skin cells might not be the same as the chromosomes in our muscle cells, even if they come from the same person.

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Identify the structures shown.

A. chromosomes

B. mitochondria

C. nuclei

D. vacuoles

C

Describe how the structures from this cell would compare to the structures in the nucleus of another body cell from the same person.

A. There would be longer.

B. They would be shorter.

C. They would be the same.

D. They would be different.

Describe how the structures from this cell would compare to the structures in the nucleus of another body cell from the same person.

A. There would be longer.

B. They would be shorter.

C. They would be the same.

D. They would be different.

Explain why the structures are in pairs.

A. They aren't in pairs.

B. They are in pairs because each one comes from a different parent.

C. This cell is making a copy of itself.

D. The cell always has 2 copies in case 1 is damaged.

According to the given equation, 2C4H10 + 1302 — 8CO2 + 10H, 2 moles of O are required to react with 4.71 moles of C4H10.

The number of moles of a compound can be calculated stoichiometrically as follows:

The balanced chemical equation is given as follows:

2C4H10 + 1302 — 8CO2 + 10H

Based on the above equation, 2 moles of C4H10 reacts with 13 moles of O

Therefore; 4.71 moles of C4H10 will react with 4.71 × 6.5 = 30.62 moles of O

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Answer: 30.6

Explanation:

Answer:

B subtract

Explanation:

they are pulling away from one another so a and c are out of the question then that leaves you with b or d but we're not dividing anything. soooo we're left with B.

Answer:

Explanation:

pls brainlest meh

In an exothermic reaction, the reactants have more energy than the products.

Answer:

The answer is

Explanation:

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

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

From the question

mass of ball = 8.5 g

density = 1.3 g/mL

It's volume is

\(volume = \frac{8.5}{1.3} \\ = 6.538461...\)

We have the final answer as

Hope this helps you

Based on the nature of the types of chemical bonding, the example illustrates covalent bonding because electrons are shared between the carbon and hydrogen atoms.

Chemical bonding or combination occurs when atoms of elements combine to form products.

Chemical bonding can either be;

Covalent bonding involves a sharing of electrons by the atoms of elements involved.

Since the example shows electrons being shared between carbon and hydrogen atoms, the example illustrates a covalent bonding because electrons are shared between the atoms.

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Steel is produced from pig iron through a process known as steelmaking or iron and steel production.

The pig iron obtained from the blast furnace contains high amounts of carbon, impurities, and other elements. To convert pig iron into steel, the carbon content needs to be reduced to desired levels, and impurities must be removed.One common method of steelmaking is the basic oxygen process (BOP). In this process, pig iron is placed in a vessel called a converter, where oxygen is blown through the molten metal. The oxygen reacts with the carbon and impurities, causing them to oxidize and form gases that are released. Alloying elements and desired additives can be added at this stage to achieve specific steel properties. Another method is the electric arc furnace (EAF), where an electric arc is used to heat and melt the pig iron, allowing impurities to be oxidized and removed.The advantages of using steel are numerous. Steel is strong, durable, and versatile, making it suitable for a wide range of applications. It has high tensile strength, which means it can withstand heavy loads and pressures. Steel is also resistant to corrosion, making it ideal for construction, infrastructure, and transportation projects. It is a recyclable material, contributing to sustainability and reducing environmental impact. Additionally, steel can be fabricated into various shapes and sizes, allowing for customization and flexibility in design.References:

A. Ghosh and A. Chatterjee, Ironmaking and Steelmaking: Theory and Practice, PHI Learning, 2008.

R.H. Tupkary and V.R. Tupkary, An Introduction to Modern Iron Making, Khanna Publishers, 2010.

J.R. Davis, ed., ASM Specialty Handbook: Carbon and Alloy Steels, ASM International, 1995.

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Answer:

101 L

Explanation:

35.0 g KOH ÷ 56.09 g/mol KOH × (1 mol H2O/ 1 mol KOH) × 18 g/mol H2O = 11.2 g H2O

35.0 g HCl ÷ 36.45 g/mol HCl × (1 mol H2O/ 1 mol HCl) × 18 g/mol H2O = 17.3 g H2O

35.0 g KOH is the limiting reactant

Answer:

I THINK IT'S BECAUSE THE EARTH UNDER THE SEA SHIFTS AND THE VIBRATION OF THE WATER GETS BIGGER UNTIL IT BECOMES A TSUNAMI. BRAINLIST ???

Answer:

False

Explanation:

Hello,

In this case, it is possible to substantiate that the statement is false, since the entropy of sucrose is greater than the entropy of ribose due to the fact that molar mass of the sucrose (342 g/mol) is greater than the molar mass of ribose (150 g/mol) and the general rule states that the greater the molar mass the greater the entropy.

Best regards.

Answer:

21 cm 3 that is the answer

Answer:

Gravitational force between two objects depends on: a. The weight of the objects c. The mass of each object b. The distance between the objects d. Both b and c Please select the best answer from the choices provided A B C D

✓d

Food chain transfer energy from organism to organism. This is the correct option.

Food is the source of energy for all living things. For food, animals rely on other living things. While some animals only eat plants, others devour other creatures. A food chain is the progression of energy from the sun to plants, animals, and then more animals.

The flow of nutrients and energy through an ecosystem is described by a food chain. Energy is first produced by plants at the most fundamental level, and then it is used by higher-level species like herbivores. Energy is then transmitted from one carnivore to the next when they eat the herbivores.

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Answer:

A

Explanation:

I took the quiz

Answer:

true atoms of each elementary

Answer:

false

Explanation:

2.5 moles of BaCl2 can produce 5 moles of NaCl.

Chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas.

The balanced chemical equation for the reaction between barium chloride (BaCl2) and sodium sulfate (Na2SO4) is:

BaCl2 + Na2SO4 → 2 NaCl + BaSO4

From this equation, we can see that for every 1 mole of BaCl2, 2 moles of NaCl are produced.

Therefore, to calculate how many moles of NaCl can be produced from 2.5 moles of BaCl2, we can use the following proportion:

1 mole BaCl2 : 2 moles NaCl = 2.5 moles BaCl2 : x moles NaCl

Where

Solving for x, we get:

x = 2.5 moles BaCl2 × (2 moles NaCl / 1 mole BaCl2)

x = 5 moles NaCl

Therefore, 2.5 moles of BaCl2 can produce 5 moles of NaCl.

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The composition is three number of atoms in each sample.

The number of samples that was given include the following:

Water (H2O) : This sample is made up of three number of atoms but contains only two elements of oxygen and hydrogen in a ratio of 1:2 respectively.

Carbondioxide (CO2) : This sample is made up of three number of atoms but contains only two elements of carbon and oxygen in a ratio of 1:2.

Sugar (CHO) : This sample is made up of three number of atoms but contains three elements of carbon, oxygen and hydrogen in a ratio of 1:1:1.

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Answer:

It is like about a attraction between atoms, molecules, and more.

Protons and neutrons have most of the mass but occupy very little of the volume of the atom.

The statement concerning the structure of the atom is correct is Protons and neutrons have most of the mass but occupy very little of the volume of the atom. Therefore, option D is correct.

Each atom is made up of a nucleus and one or more electrons that are linked to it. One or more protons and a significant number of neutrons make up the nucleus. Only the most prevalent type of hydrogen is neutron-free. Atoms that are neutral or ionized make up every solid, liquid, gas, and form of plasma.

But when it comes to the name atom, we must travel back to 400 B.C. ancient Greece. The Greek word atomos, which meaning "uncuttable," was proposed by Democritus, a renowned philosopher. In the end, all matter could be reduced to distinct, tiny particles, or atomos, he said.

The smallest unit of matter that may be divided without producing electrically charged particles is the atom.

Thus, option D is correct.

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The empirical formula of a compound that has the following percent composition; 81.68% carbon and 18.32% hydrogen is C2H5.

The empirical formula is a notation indicating the ratios of the various elements present in a compound, without regard to the actual numbers.

The empirical formula of a compound that has 81.68% carbon and 18.32% hydrogen can be calculated as follows:

First, we convert mass to moles;

Next, we divide each mole value by the smallest (6.81mol)

We multiply each ratio by 5 to make an whole number:

Therefore, the empirical formula of a compound that has the following percent composition; 81.68% carbon and 18.32% hydrogen is C2H5.

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The correct option that would convert mg/L into molarity (mol/L)- Convert mg/L to get g/L then multiply by the volume (L). so, option (a) is correct.

What is molarity ?

The amount of solute in one mole per liter of solution is known as molarity. For instance, when table salt is dissolved in water, the solute is salt, and the solution is water. 58.44 grams make up one mole of sodium chloride. One molar solution, often known as 1M, is created when 58.44 grams of sodium chloride are dissolved in one liter of water.

What is volume ?

Volume, a three-dimensional quantity, is used to calculate the capacity of a solid shape. It suggests that the volume of a closed figure determines the amount of three-dimensional space it can occupy.

Therefore, the correct option that would convert mg/L into molarity (mol/L)- Convert mg/L to get g/L then multiply by the volume (L). so, option (a) is correct.

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Answer: Not A, its B

Explanation: B

Answer:

Density = 0.17 g/L

Explanation:

It is given that,

Volume of the inflated balloon filled with Helium, \(V=2.2\times 10^3\ L\)

Mass, m = 374 g

We need to find the density of helium. It is equal to its mass per unit volume. It can be given by :

d =m/V

\(d=\dfrac{374\ g}{2.2\times 10^3\ L}\\\\=0.17\ g/L\)

So, the density of helium in the balloon is 0.17 g/L.

We are given:

Mass of NaCl in the given solution = 22.3 grams

Volume of the given solution = 2 L

Number of Moles of NaCl:

We know that the number of moles = Given mass / Molar mass

Number of moles = 22.3 / 58.44 = 0.382 moles

Molarity of NaCl in the Given solution:

We know that Molarity of a solution = Moles of Solute / Volume of Solution(in L)

Molarity = 0.382 / 2

Molarity = 0.191 M

Aria speed during scuba diving was 0.15 m/s.

Speed is the ratio of the distance travelled to the time taken. Speed is given by:

Speed = distance / time

Given that the distance travelled was 36 meters and the time was 4 minutes, hence:

Time = 4 minutes × 60 seconds per minute = 240 seconds

Speed = 36 m / 240 s

Speed = 0.15 m/s

Therefore Aria speed during scuba diving was 0.15 m/s.

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Answer:

I think C

Explanation:

because hydrogen on the right side only have two while on the left side it have 4

Answer:

The answer is A. No Oxygen is Unbalanced

Explanation:

I took the test. You got this.

In 4.38 × 10^21 molecules of water, there are approximately 0.073 moles.

To calculate the number of moles, we can use Avogadro's number, which states that 1 mole of a substance contains 6.022 × 10^23 molecules. So, by dividing the given number of molecules (4.38 × 10^21) by Avogadro's number, we can find the number of moles.

Now, let's explain the process in detail. Avogadro's number is a constant that represents the number of particles (atoms, molecules, etc.) in one mole of a substance. It is approximately 6.022 × 10^23. Therefore, if we divide the given number of molecules by Avogadro's number, we can determine the number of moles.

In this case, we divide 4.38 × 10^21 molecules by 6.022 × 10^23 molecules/mole, resulting in approximately 0.073 moles.

Significant figures play an important role in reporting the answer. The given number of molecules has three significant figures (4, 3, and 8), so our answer should be reported with three significant figures as well. Therefore, the number of moles is approximately 0.073.

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The fact is the carbon-oxygen bond length in CO₃²⁻ is greater than the carbon-oxygen bond length in CO₂ because of its bond order. CF4 has a tetrahedral geometry, so the bond dipoles cancel, leading to a nonpolar molecule. SF4 exhibits a trigonal bipyramidal electronic geometry, with the lone pair of electrons so SF₄ is polar.

Due to resonance, the bond character of CO₃²⁻ lies between a single and a double bond, whereas CO₂ has two double bonds (linear structure with carbon as the central atom, O=C=O). Bond length is inversely proportional to bond order, and bond order depends on the number of bonds. Therefore, CO will have triple bonds, while CO₂ will have two double bonds. Therefore, the order of bond length will be CO₃²⁻>CO₂ >CO.

Due to the tetrahedral geometry of CF₄, the bond dipoles cancel and the molecule becomes nonpolar. The core S atom is surrounded by five pairs of electrons, and SF₄ displays a trigonal bipyramidal electronic geometry.

The molecule is polar because the bond dipoles in this configuration do not cancel.

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