The answer to this would be a physical change. Physical changes are changes that affect the form of a chemical substance, but not the chemical composition itself. Hope this helped!
A substance that is impenetrable by x-rays is described as being radiopaque.
Radiopaque substances will not allow x-rays and or other forms of radiations to pass through them.
Instead, they absorb or block the rays and when used in radiology, they appear white or light gray on photographic films.
Radiopaque materials are applied in generating ultrasound images and other forms of clinical procedures.
More on radiopaque materials can be found here: brainly.com/question/10583205?referrer=searchResults
Alpha particle is the nuclear decay emission that has the weakest penetrating power. The correct option among all the options that are given in the question is the first option or option "1". Gamma is a type of radiation and so can be negated as a particle. Alpha particles have the largest radiation and so the weakest penetrating power.
Is a solid? has strong intermolecular forces?
Answer:
The right choice is → a reduction reaction
Explanation:
From the balanced equation
- 3CIO⁻₍aq₎ → CIO⁻ ₍aq₎ + 2Cl⁻ ₍aq₎
we can calculate the change in oxidation number of Cl in reactant and product
in reactant ClO⁻
let x= oxidation number of Cl
and oxidation number of oxygen in its compound is (-2)
and the total charge on the ClO⁻ ion = -1
- ∴x + (-2) = -1 →→→ x = +1
in product Cl⁻
let x= oxidation number of Cl
and the total charge on the Cl⁻ ion = -1
so the oxidation number of Cl decreases from +1 in reactant to -1 in product so it is reduction reaction.
But, disproportionation reaction is defined as the chemical reaction in which a single substance gets reduced as well as oxidized.
For a disproportionated substance , it should contain at least three oxidation states. which isn't the case here.
<u>So, the right choice is: </u>
→ a reduction reaction
