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3 years ago

X2SO3 Enter the group number of X. How do I find this? Chemistry

Chemistry

2 answers:

m_a_m_a [10]3 years ago

7 0

Na2SO3 and H2SO3 are the possible compounds hence X belongs to group number 1.

rosijanka [135]3 years ago

6 0

Answer: The group number of X is Group 1.

Explanation:

Groups are defined as the vertical columns in a periodic table.

We are given a chemical compound having chemical formula of $X_2SO_3$

This is formed by the combination of X atoms and $SO_3^{2-}$ ions.

By criss-cross method, 2 atoms of X combine with 1 atom of sulfite ions.

Thus, the oxidation state of X atom is +1.

The elements belonging to Group 1 shows an oxidation state of +1.

Hence, the group number of X is Group 1.

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Calculate the molarity 20ml of 3.5 m kci in to a final volume of 100 ml

satela [25.4K]

Answer:

Molarity = 0.7 M

Explanation:

Given data:

Volume of KCl = 20 mL ( 0.02 L)

Molarity = 3.5 M

Final volume = 100 mL (0.1 L)

Molarity in 100 mL = ?

Solution:

Molarity = number of moles of solute / volume in litter.

First of all we will determine the number of moles of KCl available.

Number of moles = molarity × volume in litter

Number of moles = 3.5 M × 0.02 L

Number of moles = 0.07 mol

Molarity in 100 mL.

Molarity = number of moles / volume in litter

Molarity = 0.07 mol /0.1 L

Molarity = 0.7 M

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Valentin [98]

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2 years ago

A student is using a coffee-cup calorimeter to determine the enthalpy change of the endothermic reaction of two aqueous solution

Liula [17]

Answer:

See the answer below

Explanation:

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zaharov [31]

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<h3>What is gamma radiation?</h3>

Gamma radiation (gamma rays) refers to the part of the electromagnetic spectrum with the most energy and shortest wavelength. Astrophysicists define gamma radiation as any radiation with an energy above 100 keV. Physicists define gamma radiation as high-energy photons released by nuclear decay.

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Learn more about gamma radiation

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1 year ago