Answer:
<em> </em><em>T</em><em>he </em><em>main </em><em>universal </em><em>indicator</em><em> </em><em>is </em><em>in </em><em>the </em><em>form </em><em>of </em><em>a </em><em>solution</em><em> </em><em>and </em><em>are </em><em>thymol </em><em>blue </em><em>,</em><em> </em><em>methyl </em><em>red </em><em>,</em><em> </em><em>bromothymol </em><em>blue </em><em>and </em><em>phenolphthalein </em><em>this </em><em>mixture </em><em>is </em><em>important </em><em>because</em><em> </em><em>each </em><em>component </em><em>loses </em><em>or </em><em>gains </em><em>protons </em><em>depending</em><em> </em><em>upon </em><em>the </em><em>acidity </em><em>of </em><em>the </em><em>solution</em><em> </em><em>being</em><em> </em><em>tested </em><em>.</em>
<em><u>maybe </u></em><em><u>this </u></em><em><u>m</u></em><em><u>i</u></em><em><u>ghr </u></em><em><u>help</u></em><em><u> </u></em><em><u>u</u></em>
Answer:
Le Chatelier's principle can be applied in explaining the results
Explanation:
According to Le Chatelier's principle, when a constraint such as a change in concentration in this case is imposed on a chemical system in equilibrium, the system will adjust itself in such a way as to annul the constraint imposed.
Hence, when the color of the solution was more like that of the control, the reaction would shift towards the left. Similarly, when the color was more like it was towards the reactant, the reaction would shift towards the right.
If we were to prepare calcium oxalate, we should prepare it in a base solution. This is because when the base was added to calcium oxalate, it did not form any precipitate but when an acid was added to the calcium oxalate, it formed a precipitate.
Answer:
34g of potassium chlorate.
Explanation:
A saturated solution is a solution that, under a temperature, has the maximum amount of solute possible. The maximum amount that a solvent can dissolve of a solute is called <em>solubility.</em>
<em> </em>
The solubility of potassium chlorate in water at 70°C is 34g/ 100g of water.
That means, to saturate 100g of water at 70°C you need yo add:
<h3>34g of potassium chlorate.</h3>
Answer:
Infrared radiation → A) used to detect the location of objects
Microwaves → D) Used in radar and to heat food
Ultraviolet light → C)Given off by very hot objects, such as the sun Heat from warm objects
Visible light → B) All the radiation humans can see, ranging from red to violet
Explanation:
Microwaves have magnetic waves with very long lengths, greater than that of infrared light. These waves are produced through vibrations that produce heat, as the microwave is turned on, which allows the food to be heated. These waves are also used to provide communication on some types of devices.
Infrared radiation is a type of non-ionizing radiation that has a low frequency and therefore cannot be visualized, since it is not within a visible electromagnetic spectrum, having a frequency lower than red. It can be used to detect the licalization of objects and does not pose a health risk.
Ultraviolet radiation is extremely harmful to our body. It is characterized by radiation with very small wavelengths, less than 400nm. This type of radiation can be released by the sun and ultraviolet lamps.
Visible light refers to the simplest form of electromagnetic wave and covers all the radiation that our eyes can see, allowing different colors to be seen in the objects we observe according to the reorganization of atoms and molecules.
