One of the components that make up common table sugar is fructose, a compound that contains only carbon, hydrogen, and oxygen. complete combustion of 1.50 g of fructose produces 2.20 g of carbon dioxide and 0.900 g of water. what is the empirical formula of fructose? answer

The electron, through the formation of chemical bonds, is the subatomic particle responsible for holding atoms together, which allows for the creation of new substances.

The subatomic particle specifically responsible for holding atoms together to form new substances is the electron. Atoms are joined to one another through chemical bonds which involve the sharing or exchange of electrons between atoms. As atoms come together, these interactions give rise to molecules with distinct properties, transforming reactants into products during a chemical reaction. Hence, while protons determine the identity of an element, electrons are key to the formation of molecules and compounds, the building blocks of matter.

The use of steam during the Industrial Revolution led to an interest in understanding the atom due to technological advancements, energy transformation, and scientific progress.

The use of steam during the Industrial Revolution led to an interest in understanding the atom for several reasons:

To determine the molar mass of metal 'M', calculate the moles of AgCl formed using its molar mass, derive the moles of Cl in MCl2 from this, and calculate the mass of 1 mol of MCl2. Afterwards, rearrange the formula to compute the molar mass of M.

To calculate the molar mass of metal (M), we are given that 3.60 g of AgCl is equivalent to 1.59 g of MCl2. From the periodic table, we know that the molar mass of AgCl is 143.3 g/mol and that of Cl is 35.45 g/mol.

Firstly, we need to calculate the moles of AgCl formed, that is 3.60 g / 143.3 g/mol = 0.0251 mol.

Each mole of AgCl produced comes from one mole of Cl. Moles of Cl in MCl2 = 0.0251 mol * 2 = 0.0502 mol. We multiply by 2 because each formula unit of MCl2 contains 2 Cl atoms. Hence, 1.59 g of MCl2 contains = 0.0502 mol of Cl.

So, the mass of 1 mol of MCl2 = (Molar mass of M + 2 * Molar mass of Cl). From this we can determine the molar mass of M = (Mass of 1 mol MCl2 – 2 * Molar mass of Cl) = (1.59 g / 0.0502 mol) - (2 * 35.45 g/mol) = approximately 36.82 g/mol.

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Dissolving the solid tablet in water is a physical change as the chemical composition of the substance doesn't change.

A physical change can be described as a change that occurs when some of the features of the matter change but the identity does not. Physical changes are dived into categories as reversible and irreversible. For example, the melting of ice is a reversible physical change as the melted ice can be refrozen.

Physical change can be described as a kind of change where only the physical properties of a substance such as color, odor, solubility, etc. can undergo change. During physical changes, no chemical bonds between atoms in the substance are broken or formed.

The chemical composition as well as the nature of matter remains unchanged during a physical change.  The molecules of the substance can be rearranged without changing the internal composition.

Dissolving the solid tablet in water can not change the chemical composition of the tablet while the carbon tablet undergoes a chemical reaction with water and produce carbon dioxide.

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Final answer:

The question is about the chemical process of a solid dissolving in water, known as dissolution. Factors like stirring, temperature, and surface area can affect the rate of dissolution, with practical applications observed in dissolving salt or sugar.

Explanation:

The process of a solid tablet dissolving in water is a chemical phenomenon where the solid substance breaks down and disperses throughout the liquid, forming a homogeneous solution. This is termed dissolution. The rate of dissolution can be influenced by several factors, such as stirring, temperature, and the surface area of the solid. To illustrate, consider the dissolution of table salt (NaCl) in water, which breaks apart into its constituent sodium and chloride ions, each surrounded by water molecules.

The faster dissolution of granulated sugar compared to sugar cubes in tea serves as a practical example of how surface area affects dissolution rates. Heating can also accelerate the process, as seen when a solute dissolves more quickly in hot water.

In experiments such as adding an effervescent tablet to a balloon over a test tube of water, we can observe not only dissolution but also possibly a chemical reaction releasing gas, which inflates the balloon. To further understand these processes, students might perform exercises such as determining mass before and after dissolution or crystallization practices that involve the careful addition and heating of solvents to dissolve solids.

The balanced chemical equation for the reaction between aluminum phosphate and nickel (II) sulfide to form aluminum sulfide and nickel (II) phosphate is: 2 AlPO4 + 3 NiS → Al2S3 + Ni3(PO4)2.

When aluminum phosphate reacts with nickel (II) sulfide, the resultant products are aluminum sulfide and nickel (II) phosphate. The unbalanced chemical equation for the reaction is:

AlPO4 + NiS → Al2S3 + Ni3(PO4)2

To balance the equation, it can be observed that there are 2 aluminum atoms on the right side and thus we will need 2 units of AlPO4 on the left side to ensure the balance of aluminum. Similarly, the 3 nickel atoms on the right side come from 3 units of NiS on the left. Phosphorus and sulfur atoms are already balanced with 1 phosphate ion on the left side and 1 sulfide ion on the right side. As a result, the balanced chemical equation is:

2 AlPO4 + 3 NiS → Al2S3 + Ni3(PO4)2

Answer:

The correct answer is option : Mechanical wave.

Explanation:

Mechanical waves are the wave which requires any medium to travel or to propagate or we can say wave which transfers energy through medium.For example: sound waves, water waves etc.

Shock wave is the wave with speed larger than the normal speed of light moving in a medium.

An electromagnetic waves are the waves capable of travelling through empty space or vacuum.They are composed of electric field and magnetic field. The gamma ray and  radio wave are the example of electromagnetic wave.

Answer:

D

Explanation:

Based on the figure, Neon has an atomic number of 10 and a Mass number of 20.18. We must take note that the atomic number is equal to the number of protons, while the Mass number is equal to the number of protons PLUS neutrons, so:

number of protons = 10

protons + neutrons = 20.18

hence,

10 + neutrons = 20.18

number of neutrons = 10.18

A neutron can be a considered as a whole single atom so it cannot have a decimal. The only way that the number of neutrons is fractions is only when it is a combination of isotopes. So the answer is:

Yes, Neon has isotopes

The name of the following chemical formula P₄O₁₀ is tetraphosphorus decoxide .

Chemical  formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols  of elements. It also makes use of brackets and subscripts.

Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form  is called empirical formula.

It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.

There are four types of chemical formula:

1)empirical formula

2) structural formula

3)condensed formula

4)molecular formula

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1144000 cal is the quantity of heat is needed  to warm 52 kg of water by 22 [tex]\rm ^oC[/tex] for bath.

Heat is the energy that spontaneously transfers between systems or things as a result of temperature changes in chemistry. Conduction, convection, or radiation are all possible methods of transmission. Temperature changes result through heat exchange, which frequently occurs during chemical reactions. The rate of reactions, phase transitions, and general system behaviour are all strongly influenced by this thermal energy transfer. Understanding the dynamic behaviour of matter at the molecular level requires an understanding of heat, which can be measured in quantities like joules or calories.

Q= mc(T2-T1)

m= 52 kg,

T2-T1 = 22 [tex]\rm ^oC[/tex]

C= 1 cal/g[tex]\rm ^oC[/tex]

Q= 52000g x  1 cal/g[tex]\rm ^oC[/tex] x 22C

= 1144000 cal

C= 4.184 joules/kg[tex]\rm ^oC[/tex]

Q= 52 kg x  4.184 joules/kg[tex]\rm ^oC[/tex]x 22

 = 4786.496Joules

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To warm 52 kg of water by 22°C, we must first convert the mass of water to grams and then apply the specific heat of water formula. Calculating through gives us 4,787,776 joules, but requested in calories, we convert the joules to give approximately 1,144,591.5 calories of heat energy.

The specific heat of water is 4.184 J/g °C. When we translate this into more understandable terms, it means that it takes 4.184 joules of energy to raise one gram of water by one degree Celsius. Now, to find out how much heat is needed to warm your volume of water, we must use the specific heat equation: Q = mcΔT, where 'Q' is the heat energy, 'm' is the mass of the substance being heated (in this case, water), 'c' is the specific heat of the substance, and 'ΔT' is the change in temperature.

Now all we do is substitute the relevant values into the equation: Q = 52,000g * 4.184 J/g°C * 22°C. The g (grams) cancel out, as do the °C (degrees C), leaving us with Q = 4,787,776 joules. However, you wished to express the answer in calories. To convert from joules to calories, we must remember that 1 cal = 4.184 J. So, Q = 4,787,776 / 4.184 = 1,144,591.5 cal.

Thus, you would need approximately 1,144,591.5 calories of heat energy to warm 52 kg of water by 22°C for your bath.

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Answer : The formula for lead oxide is, [tex]PbO[/tex]

Explanation :

As we know that the lead is a metal having the atomic number 82. The symbol of lead is, (Pb). The charge on lead is (+2).

The element oxygen is the non-metal having the atomic number 8. The symbol of oxygen is, (O). The charge on oxygen is, (-2).

When the lead combine with the oxygen, it forms lead oxide. It is an ionic compound in which the a metal react with the non-metal and combine with the an ionic bond by the criss-cross method.

Hence, the formula of the lead oxide is, [tex]PbO[/tex]

Answer:

The correct answer is oxidation-reduction.

Explanation:

This reduction-oxidation reaction is given by the following semi-reactions:

[tex]Br_{2}[/tex] + 2 [tex]e^{-}[/tex] → 2 [tex]Br^{-1}[/tex] (reduction)

2 [tex]K^{0}[/tex] - 2 [tex]e^{-}[/tex] → 2 [tex]K^{1}[/tex] (oxidation)

[tex]Br_{2}[/tex] is an oxidation agent, K is a reducing agent.  

This means that [tex]Br_{2}[/tex] oxidizes K by increasing its oxidation number from 0 to 1.

[tex]Br_{2}[/tex] is reduced, decreasing its oxidation number from 0 to -1.

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The aluminum element has the electron configuration 1s²2s²2p⁶3s²3p¹.

A neutral atom can be defined as one in which the number of protons (positive charge) is equal to the number of electrons ( negative charge ). The overall electric charge of a neutral atom is zero. Therefore, this kind of atom is called a neutral atom.

For a neutral atom, we generally say that the number of electrons should be equal to the number of protons. All chemical elements placed in the periodic table are in a neutral state.

The given electronic configuration has 13 electrons. The number of electrons in the valence shell is three so the element belongs to group 13 and the valence electron is filled in their electron shell so it is the element of the third period.

We know that the aluminum element has an atomic number of 13. Therefore, the given electronic configuration belongs to a neutral atom of the aluminum element.

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Black vs. white surfaces' heat absorption and radiation explained.

Black is a better absorber and radiator of heat compared to white. On a sunny day, black surfaces such as asphalt get hotter than lighter surfaces like gray sidewalk because black absorbs heat more efficiently. Conversely, at night, black surfaces cool down faster than lighter surfaces due to their better radiative properties.

Final answer:

The typical ion formed by aluminum (Al), a group 3a metal, is the cation Al³+, due to the loss of its three valence electrons upon reaction.

Explanation:

The ion that aluminum (Al), which is a group 3a metal, typically forms is Al³+, an aluminum ion. This is because aluminum falls under group 13 of the periodic table and has the valence shell electron configuration of ns²np¹. When aluminum reacts, it tends to lose all three of its valence electrons, resulting in compounds with an oxidation state of 3+. This is observed in both covalent compounds and ionic compounds like AlF3 and Al₂(SO4)3. In aqueous solutions, aluminum ions are typically found as [Al(H₂O)6]³+, commonly abbreviated as Al³+ (aq).

.The temperature levels in a nuclear reactor are maintained primarily by the use of

1. shielding

2. coolants

3. moderators

4. control rods