Chemistry, 05.02.2020 09:45 AyeSmoky

Which property can be used to distinguish talc from gypsum?
gypsum has a soapy feel.

talc has a soapy feel.

gypsum can scratch glass.

talc fizzes with hydrochloric acid.

Answers: 2

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Answer from: ghopk5929

B. Talc has soapy feel.

Explanation:

Gypsum is a hydrated calcium sulphate mineral .

The chemical formula of gypsum is CaSO_4.2H_2O

It consist of calcium, sulphur, oxygen and hydrogen.

It is soft sulphate mineral. It is used in plaster formation. It is used in blackboard chalk formation.It is used as a fertilizer.It Talc can not scratch gypsum because it is harder than talc.It has no soapy feel.

Talc is hydrous magnesium silicate mineral . It is usually green ,gray, white , brown or colourless.It is a translucent mineral . It has pearly luster.

It is soften known mineral. The chemical formula of talc is $Mg_3Si_4O_{10}(OH)_2$ .It consist of magnesium, silicon, oxygen and hydrogen.It has extreme softness and greasy. It has soapy feel. Gypsum is harder than talc and more difficult to scratch.

Hence, the option B is true.

B. Talc has soapy feel.

Answer from: Quest

We first assume that this gas is an ideal gas where it follows the ideal gas equation. the said equation is expressed as: pv = nrt. from this equation, we can predict the changes in the pressure, volume and temperature. if the volume and the temperature of this gas is doubled, then the pressure still stays the same.

Answer from: Quest

the term hydride is commonly named after binary compounds that hydrogen forms with other elements of the periodic table. hydride compounds in general form with almost any element, except a few noble gases. the trends and properties vary according to the type of intermolecular force that bonds the elements together, the temperature, its molecular masses, and other components. hydrides are classified into three major groups, depending on what elements the hydrogen bonds to. the three major groups are covalent, ionic, and metallic hydrides. formally, hydride is known as the negative ion of a hydrogen, h-, also called a hydride ion. because of this negative charge, hydrides have reducing, or basic properties. its special characteristics will be further discussed.

explanation:

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Which property can be used to distinguish talc from gypsum?
gypsum has a soapy feel.

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