Cloth can be a great choice for green and chemical-free insulation in the home. using cloth as in insulator help keeps fabric scraps out of landfill and minimizes exposure to harmful chemicals common in modern insulation.
Yes it is burned and I need to do that question as well for my class
<span>The instructor should be questioned to see if the filtrate is able to be recycled. This precipitate can contaminate the filtrate, rendering it useless for repeated experiments. If it is able to be recycled, a second pass through the filter might be required to remove the precipitate.</span>
To find the ratio of the the combination for the ion, write the charge of the cation as the subscript for the anion, and the charge of the anion as the subscript of the cation. This will make the charges effectively cancel and you will be left with a neutral ionic compound. Remember, that an ionic compound is made up of a metal and a nonmetal.
For Cr3+ and O2-, you will get the neutral compound to be Cr₂O₃.
The proportion these ions combine in is 2 to 3. 2 ions of Cr3+ and 3 ions of O2-
Your answer is D) 2:3