A beaker about two-thirds full of a liquid. check all that apply. pour using tongs. wear chemical resistant gloves. taste to make sure it is hcl. One should wear chemical resistant gloves.
It is not at all possible to pour the liquid with the help of tongs because it may spill and cause harm, in case it is hazardous.
Also tasting whether the liquid is hcl or not is not gonna help because we don't know whether the chemical is fatal or not. Even if it is Hcl, tasting it is not a good option, because it will cause damage to our tongue and other parts of mouth.
Thus the most convenient thing to do is to wear chemical resistant gloves to ensure safety.
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The classification of each of the elements into nonessential element, essential bulk element, or essential trace element are as follows:
Nonessential elements:
Essential bulk elements:
- Carbon,
- Nitrogen,
- Calcium,
- Hydrogen
Essential trace elements:
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The elements are: Hydrogen, iron, Copper, Nitrogen, Helium, Carbon, Aluminum, Calcium, Argon
<h3>What is Essential and Nonessential Elements?</h3>
Nonessential elements as the name implies are elements which are not necessary for the functional routine of the body and hence are not included in diets.
Essential bulk elements are elements which are needed for the proper functioning of the body and hence are required in relatively large amounts.
Essential trace elements are required in minute quantities in the body.
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On the left of the paper it should be the “cue Column and at the right side of the paper it should be “Note taking Column” and the bottom of the page it should be the summary section.
The oxidation number if eah of the elements is as follows;
- Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
- Oxidation number if hydrogen is +1 on both sides
- The oxidation number of oxygen is -2 on both sides
- The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.
<h3>What is a redox reaction?</h3>
A redox reaction is one in which there is a change in the oxidation number of the reactants from left to right.
Let us now consider the oxidation number of each element from left to right;
- Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
- Oxidation number if hydrogen is +1 on both sides
- The oxidation number of oxygen is -2 on both sides
- The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.
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