For an atom of chlorine-35, what number would you put as the SUPERSCRIPT in the atomic notation?

Answer:

the eye socket

Explanation:

the area around the eye is called the eye socket or the eye orbit.

Answer:

0.80 M ion concentration

Explanation:

Step 1: Define

0.20 M solution of Na₃PO₄

Step 2: Find ions (Decomposition RxN)

Na₃PO₄ → 3Na⁺ + PO₄³⁻

Step 3: Find ion concentration

3Na⁺ - 3(0.20 M) = 0.6 M Na⁺ ion

PO₄³⁻ - 1(0.20 M) = 0.2 M PO₄³⁻ ion

Step 4: Add ion concentrations

0.6 M + 0.2 M = 0.80 M ion concentration

To form one formula unit of Al2O3, a total of 12 electrons (6 from aluminum and 6 from oxygen) must be transferred.

The compound Al2O3, commonly known as aluminum oxide, is formed when two aluminum atoms and three oxygen atoms bond. To determine the number of total electrons that must be transferred to form one formula unit of Al2O3, we first need to find the number of electrons that are present in one formula unit of Al2O3.

Aluminum has an atomic number of 13, which means it has 13 protons and 13 electrons in a neutral atom. Each aluminum atom in Al2O3 contributes 3 electrons, and since there are two aluminum atoms in one formula unit of Al2O3, the total number of electrons contributed by aluminum atoms is 6.

Oxygen has an atomic number of 8, which means it has 8 protons and 8 electrons in a neutral atom. Each oxygen atom in Al2O3 contributes 2 electrons, and since there are three oxygen atoms in one formula unit of Al2O3, the total number of electrons contributed by oxygen atoms is 6.

Therefore, to form one formula unit of Al2O3, a total of 12 electrons (6 from aluminum and 6 from oxygen) must be transferred.

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The mass of sucrose needs to be dissolved will be "97.5 g".

A cube of sugar or sweetener that is composed of yet another molecule of glucose as well as one component of fructose linked simultaneously.

According to the question,

Mass percentage = 15%

Total mass = 650 g

Let,

The mass of sucrose be "x".

Now,

The mass of sucrose will be:

→ 0.15 = \(\frac{x}{650}\)

By applying cross-multiplication, we get

        x = 0.15 × 650

           = 97.5 g

Thus the above answer is appropriate.

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The molar concentration of the HNO3(aq) solution with a pH of 1.75 is approximately 0.0177827941 M.

The pH of a solution is a measure of its acidity or alkalinity. In the case of the HNO3(aq) solution with a pH of 1.75, it indicates that the solution is strongly acidic. To determine the molar concentration of the HNO3(aq) solution, we need to understand the relationship between pH and the concentration of hydrogen ions (H+).

To find the molar concentration of the HNO3(aq) solution, we can use the relationship between pH and the concentration of H+ ions. The equation is:

[H+] = 10^(-pH)

Substituting the given pH value of 1.75 into the equation:

[H+] = 10^(-1.75)

Calculating this expression, we find that [H+] ≈ 0.0177827941.

Since HNO3 is a strong acid and dissociates completely in water, the concentration of HNO3 in the solution is equal to the concentration of H+ ions. Therefore, the molar concentration of the HNO3(aq) solution is approximately 0.0177827941 M.

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Answer:

Cl2

Explanation:

Bcs in product there is chorine

The percentage (w/v) of dextrose in the solution is approximately 1.9817%. To determine the percentage (w/v) of dextrose in a solution with a given osmolarity, we need to calculate the amount of dextrose present in 100 mL of the solution.

First, we convert the osmolarity from mosmol/L to mosmol/100 mL:

100 mosmol/L = 100 mosmol/100 mL

Next, we calculate the number of moles of dextrose present in 100 mL of the solution:

Number of moles = Osmolarity (in mosmol/100 mL) / 1000

Number of moles of dextrose = 100 mosmol/100 mL / 1000 = 1 mosmol/100 mL

Now, we can calculate the mass of dextrose present in 100 mL of the solution:

Mass of dextrose = Number of moles of dextrose * Molecular weight of dextrose

Mass of dextrose = 1 mosmol/100 mL * 198.17 g/mol = 1.9817 g/100 mL

Finally, we can calculate the percentage (w/v) of dextrose:

Percentage (w/v) = (Mass of dextrose / Volume of solution) * 100

Percentage (w/v) = (1.9817 g/100 mL / 100 mL) * 100 = 1.9817%

Therefore, the percentage (w/v) of dextrose in the solution is approximately 1.9817%.

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Answer:

It's cheap to make, and its recyclable

Answer:

The 1-kg ball accelerates twice as much as the 2-kg ball.

Explanation:

please add me as brainliest.....

Answer:

3 moles

Explanation:

The balanced chemical equation for the decomposition of potassium chlorate is:

2KClO3 → 2KCl + 3O2

This means that for every 2 moles of KClO3 that decompose, 3 moles of O2 are produced. We are given that 2 moles of KClO3 decompose, so we can use the stoichiometry of the balanced equation to determine the amount of O2 produced.

2 moles KClO3 × (3 moles O2 / 2 moles KClO3) = 3 moles O2

Therefore, 3 moles of O2 are produced when 2 moles of KClO3 decompose.

In the above intermediate chemical equation, oxygen will appear as follows: O₂(g) as a reactant (option B).

A chemical equation in chemistry is a symbolic representation of a chemical reaction where reactants are represented on the left, and products on the right.

According to this question, an intermediate chemical equation is presented as follows:

As observed in the above chemical equation, oxygen will react in its gaseous form i.e. as a reactant.

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Answer:

It represents a decomposition reaction because one reactant breaks apart and forms two products

Explanation:

Your welcome

To solve such this we must know the concept of redox reaction. Therefore, the correct option is option C. It represents a decomposition reaction because one reactant breaks apart and forms two products.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

Decomposition reaction is a chemical reaction where one reactant breaks down into two or more than two products on supplying energy in form of heat or electricity.

Therefore, the correct option is option C. It represents a decomposition reaction because one reactant breaks apart and forms two products.

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The activation energy of a molecule or compound is the minimum amount of energy that must be added to  to a system to break the bonds of the reactants. Hence, option C is correct.

Reactants are reacting species in a chemical reaction, that gives new products by regrouping atom in reactants. The valence electrons of reactants are participated in a chemical reaction.

Reactants needs some energy to activate themselves lead to effective collision between reactants to result in products. This additional energy required by reactants is called the activation energy.

This energy is needed weaken the intermolecular attraction and electrostatic forces within the atoms of reactants and enabling them to be reactive.

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Answer:

The three main subatomic particles that form an atom are protons, neutrons, and electrons.

Explanation:

Answer:

The three main subatomic particles that form an atom are protons, neutrons, and electron

Answer:

It has two valence electrons

Answer:

Nitrogen

Explanation:

The electron configuration of nitrogen is:

1s2 2s2 2p3

which satisfies the diagram.

Answer:

Option d is correct

Explanation:

The basis of the VSEPR model of molecular bonding is that to minimize repulsions, electron domains in the valence shell of an atom arrange on their own.

According to VSEPR theory, if there are two electron domains on a central atom, they will be arranged such that the angles between the domains are 180°

Answer:

mitosis

Explanation:

Answer:

can u give us the options

Adding 1530 cal of heat to 60.0 g of benzene results in a final temperature of approximately 86.4°C.

To calculate the final temperature of benzene after adding heat, we can use the equation:

q = m * c * ΔT

where q is the heat added, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature.

Rearranging the equation, we can solve for ΔT:

ΔT = q / (m * c)

ΔT = 1530 cal / (60.0 g * 0.42 cal/g·°C)

ΔT ≈ 61.4°C

To find the final temperature (T₂), we add ΔT to the initial temperature:

T₂ = T₁ + ΔT

T₂ = 25°C + 61.4°C

T₂ ≈ 86.4°C

Therefore, the final temperature of the benzene would be approximately 86.4°C after adding 1530 cal of heat.

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4.96  is the pH of a 0.12M solution of an acid at this temperature, if the pKb of the conjugate base is 6.3.

To answer this question, we need to use the relationship between the pH, pKb, and the concentration of the acid. First, we need to find the pKa of the acid, which is equal to 14 - pKb. So, pKa = 14 - 6.3 = 7.7.
Next, we can use the Henderson-Hasselbalch equation, which is pH = pKa + log([conjugate base]/[acid]). We know the pKa, but we need to find the concentration of the conjugate base. To do this, we can use the fact that Kw = [H+][OH-] = 2.92 x 10^-14. At 40°C, [H+] = [OH-] = 1.70 x 10^-7 M.
Since the acid is not the same as the conjugate base, we need to use stoichiometry to find the concentration of the conjugate base. Let x be the concentration of the acid that dissociates. Then, the concentration of the conjugate base is also x, and the concentration of the remaining undissociated acid is 0.12 - x.
The equilibrium equation for the dissociation of the acid is HA + H2O ↔ H3O+ + A-. The equilibrium constant is Ka = [H3O+][A-]/[HA]. At equilibrium, the concentration of H3O+ is equal to x, the concentration of A- is also equal to x (since they have a 1:1 stoichiometry), and the concentration of HA is 0.12 - x. So, Ka = x^2/(0.12 - x).
Using the definition of Ka and the given value of Kw, we can set up the following equation:
Ka * Kb = Kw
(x^2/(0.12 - x)) * (10^-14/1.70 x 10^-7) = 2.92 x 10^-14
Simplifying, we get:
x^2 = 5.7552 x 10^-6
x = 7.592 x 10^-3 M
Now we can use the Henderson-Hasselbalch equation to find the pH:
pH = 7.7 + log(7.592 x 10^-3/0.12)
pH = 4.96
Therefore, the answer is 4.96.

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Answer:color change and formation of precipitate.

Explanation: The reaction of products of the chemical reaction may have different properties

Numerous genes: Multiple genes and environmental factors frequently interact to cause genetic diseases. Mutations in a single gene are what cause sickle cell anemia.

Anemia is a condition in which there are not enough healthy red blood cells in the body. Oxygen is transported throughout the body by red blood cells from the lungs. Fatigue, weakness, dizziness, coldness in the extremities, pale skin, and difficulty concentrating are all signs of a lack of these cells in the body. An underlying medical condition, such as an iron or vitamin deficiency or chronic disease, frequently causes anemia. The root cause of anemia will determine the course of treatment.

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Answer:

i think D

Explanation:

Answer:

Seasons are caused by the Earth’s revolution around the Sun, as well as the tilt of the Earth on its axis. The hemisphere receiving the most direct sunlight experiences spring and summer, while the other experiences autumn and winter. During the warmer months, the Sun is higher in the sky, stays above the horizon for longer, and its rays are more direct.

Answer:D

Explanation:

Answer:

Ar = 12

Explanation:

I think at GCSE level it's 12. It might be more specific in A-Level and further.

Answer:

atomic mass of carbon is

12.0107 u mark me as brainlist

Benzophenone dissolves in methanol because it forms intermolecular hydrogen bonds with the methanol molecules.

Methanol is a polar solvent, meaning it has a positive and negative end. Benzophenone is also polar, with the carbonyl group (C=O) being the most polar part of the molecule. The oxygen atom in the carbonyl group has a partial negative charge, and the hydrogen atoms in the methanol molecule have a partial positive charge.

This allows for the formation of intermolecular hydrogen bonds between the benzophenone and methanol molecules. These hydrogen bonds increase the solubility of benzophenone in methanol, allowing it to dissolve.

In summary, benzophenone dissolves in methanol due to the formation of intermolecular hydrogen bonds between the polar molecules.

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Answer:

if the colliding objects have unequal mass, they will have unequal accelerations as a result of the contact force that results during the collision.