Answer:
Synthesis of a Superconductor. The YBa2Cu3O7-x is prepared by grinding the reactants together, strongly heating "calcinating" at 900–950 °C for 8-12 hours, pelletizing the powder mixture, heating or "sintering" the pellet at 950 °C for 12 or more hours, then maintaining the product at 500°C for 12-16 hours.
Answer:
Explanation:
Hello,
In this case, for this dilution process, we understand that the moles of the solute (potassium nitrate) remain unchanged upon the addition of diluting water. However, the resulting or final volume includes the added water as shown below:
In such a way, we are able to relate the solution before and after the dilution by:
Hence, we solve for the final molarity as:
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Ionic solids are therefore insulators, which is the right response. Choice "B."
<h3>Explain what an insulator is.</h3>
An insulator is any substance that prevents the energy—such as electricity, heat, or cold—from the moving through it easily. Good insulators include glass, plastic, rubber, and the wood.
<h3>Which insulator is the used most frequently?</h3>
The most popular and generally accessible type of insulation, blanket, comes in the form of rolls or batts. Flexible fibres, most frequently fibreglass, make up this substance. Additionally, natural fibres like cotton and sheep's wool are available in batts and rolls, along with artificial fibers and mineral wool.
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The first one is the answer
