Atoms of Group 6 of the Periodic Table are most likely to form ions with

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Answer 1

Answer: Sulfur is in group 6 of the periodic table. What is the charge on its ions, and is the charge positive or negative? The charge is negative, since sulfur is a non-metal. The charge on the ion is (8 - 6) = 2.

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Planck's constant relates the Joules of energy absorbed/released by matter to the:A. atomic number of the element

B. observed wavelength of light

C. speed of light

D. mass of the particulate matter

Answers

Answer: B. observed wavelength of light

Explanation: The relation of Planck's constant relating the Joules of energy absorbed/released by matter is usually used to determine the energy of the photon. The mathematical expression is -

E= h c / $\lambda$

Thus as we can observe that the energy is directly proportional to the speed of light and inversely proportional to the wavelength of the light.

Thus , we can say that Planck's constant relates the Joules of energy absorbed/released by matter to the observed wavelength of light.

The right answer for the question that is being asked and shown above is that: "B. observed wavelength of light" Planck's constant relates the Joules of energy absorbed/released by matter to the B. observed wavelength of light

Why is the concentration of iodine so much lower than other reactants like acetone and HCL?

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The concentration all depends on the variation of the volume. The volume is the amount. Iodine in general is based on a zero, which is why its concentration is lower than others.

How do volume and concentration affect the rate of response?

As the fuelsample volume will increase (e.g. as we upload greater gasoline into a bendy field, like a balloon), the reaction price stays approximately identical. The attention efficaciously does now not exchange because of the increase in mols of fuel convertingproportionally with the growth in container extent.

How the awareness affects the charge of reaction?

Growing the concentration of 1 or more reactants will regularly grow the price of the reaction. This takes place due to the fact higherattention to a reactant will cause greatercollisions of that reactant in a particular term.

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The concentration all depends on the variation of the volume. The volume is the amount. Iodine in general is based on a zero, which is why it's concentration is lower than others.

What is the empirical formula of a compound that is 79.8% carbon and 20.2% hydrogen?

Answers

The empirical formula of the compound containing 79.8% carbon and 20.2% hydrogen is CH₃

Data obtained from the question

Carbon = 79.8%
Hydrogen= 20.2%
Empirical formula =?

How to determine the empirical formula

Divide by their molar mass

C = 79.8 / 12 = 6.65

H = 20.2 / 1 = 20.2

Divide by the smallest

C = 6.65 / 6.65 = 1

H = 20.2 / 6.65 = 3

Thus, the empirical formula of the compound is CH₃

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Boron occurs naturally as two isotopes. What is the difference between these isotopes?

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Answer: The two isotopes of boron differs in mass number rather than atomic number.

Explanation:

Isotopes are defined as the chemical species that have same atomic number but differ in their mass number.

Boron is the 5th element of the periodic table and have 2 naturally occurring isotopes. The isotopes are : B-10 and B-11

For $_5^(10)\textrm{B}$ isotope:

Percentage abundance of this isotope = 20 %

Atomic number = 5

Mass number = 10

For $_5^(11)\textrm{B}$ isotope:

Percentage abundance of this isotope = 80 %

Atomic number = 5

Mass number = 11

Hence, the two isotopes of boron differs in mass number rather than atomic number.

"They have different numbers of neutrons and different mass numbers. Remember mass number is protons plus neutrons. The number of protons for an element will never change, however the number of neutrons can." I took the test, its D

The balanced chemical equation for the combustion of butane is: 2C2H2 + 5O2 CO2 + 2H2O 2CH4 + 5O2 2CO2 + 4H2O 2C4H10 + 13O2 8CO2 + 10H2O C4H10 + 12O2 4CO2 + 5H2O

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Butane is C₄H₁₀.

$C_4H_(10) + O_2 \to CO_2 + H_2O \n \n\hbox{balance carbon and hydrogen on the right-hand side:} \nC_4 H_(10) + O_2 \to 4 \ CO_2 + 5 \ H_2O \n \n\hbox{balance oxygen on the left-hand side:} \nC_4 H_(10) + (13)/(2) \ O_2 \to 4 \ CO_2 + 5 \ H_2O \n \n\hbox{multiply by 2 to get rid of the fraction:} \n2 \ C_4H_(10) + 13 \ O_2 \to 8 \ CO_2 + 10 \ H_2O$

The balanced equation is 2 C₄H₁₀ + 13 O₂ → 8 CO₂ + 10 H₂O.

The balanced chemical equation for the combustion of butane is:

2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O. Therefore, option C is correct.

This equation represents the combustion of butane in the presence of oxygen to produce carbon dioxide and water.

The equation shows that 2 molecules of butane react with 13 molecules of oxygen gas. On the left side of the equation, we have a total of 8 carbon atoms and 20 hydrogen atoms.

On the right side of the equation, 8 molecules of carbon dioxide (each with 1 carbon atom) and 10 molecules of water (each with 2 hydrogen atoms).

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Why is HBrO a weaker acid than HBrO3? A. The HO bond in HBrO is less polar than the HO bond in HBrO3 B. The HO bond in HBrO is more polar than the HO bond in HBrO3 C. The HBr bond in HBro is weaker than the HBr in HBrO3 D. The HBr bond in HBrO is stronger than the HBr bond in HBrO3 E. The HO bond in HBrO is weaker than the HO bond in HBrO3

Answers

Ans: A)

HBrO and HBrO₃ are oxyacids where the acidic strength increases with the increase in the number of atoms attached to the central atom.

In both acids, oxygen is the most electronegative atom. In HBrO, the B atom is linked to only one O atom. In contrast, there are 3 electronegative O atoms surrounding the central B atom in HBrO₃ which would make the OH bond more polar and easily accessible. Thus, HBrO₃ tends to lose a proton readily than HBrO making the former more acidic.

HBrO is a weaker acid than HBrO3 because the H-O bond in HBrO is less polar than the H-O bond in HBrO3. In a series of oxyacids with similar formulas, the higher the electronegativity of the central atom, the stronger is the attraction of the central atom for the electrons of the oxygen(s), making the acid stronger.

The acid strength of HBrO is weaker than HBrO3 because the H-O bond in HBrO is less polar than the H-O bond in HBrO3 (Option A). In a series of oxyacids with similar formulas, the higher the electronegativity of the central atom, the stronger is the attraction of the central atom for the electrons of the oxygen(s). This stronger attraction of oxygen for the electrons in the O-H bond makes the hydrogen more easily released, resulting in a stronger acid (Option E). Therefore, HBrO3 is a stronger acid than HBrO.

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