<h3><u>Answer;</u></h3>
<em> D) It can be mass produced.</em>
<h3><u>Explanation;</u></h3>
- <em><u>Synthetic materials</u></em> are those materials that are <em><u>man-made, that is they are synthesized in the lab or in industries.</u></em> They include synthetic fibers such as nylon, polyester and acrylic among others.
- <em><u>Synthetic materials</u></em> have a range of advantages over natural materials. For example, synthetic materials are durable than natural ones, they are cheap, they do not shrink and also resistant to chemicals among others.
- Additionally, synt<em><u>hetic materials such as synthetic fibers they can be mass produced in industries or in the labs. </u></em>
Answer:
0.0286 moles
Explanation:
Given mass,
Molar mass of boron, M = 10.811 g/mol
Hence, there are 0.0286 moles in given mass of boron.
The reaction of NaOH and HCl follows: NaOH +HCl ⇒NaCl + H2O.
So the ratio between the reactants is 1:1.
The moles of NaOH needed to neutralize the acid = volume of NaOH solution * concentration of NaOH solution = 0.0685 L * 0.154 M = 0.01055 mole.
Therefore 0.01055 moles of HCl is presented in the acid solution.
The concentration of HCl solution = moles of HCl/volume of HCl solution = 0.01055mole/0.025L = 0.422 M
INFORMATION:
Is given that:
- if you have a block of plastic and a block of copper that are the same mass and are placed in the sun for 10 minutes.
And after the 10 minutes copper has a higher temperature.
We must determine the reason.
STEP BY STEP EXPLANATION:
To determine it, we need to know the concept of specific heat
If the block of copper has a higher temperature after 10 minutes, that means copper needs less heat to raise its temperature.
So, plastic has a higher specific heat than metal, so it takes more energy to heat plastic than copper. As a result, plastic would heat up more slowly.
ANSWER:
The explanation for the copper having a higher temperature after 10 minutes in the sun, is that plastic has a higher specific heat than metal, so it takes more energy to heat plastic than copper. As a result, plastic would heat up more slowly. Since the copper has a lower specific heat, it will be heat quickly.