21. How long of a line should you draw to represent 500um if the diameter of the circle on your paper is 20mm, the length of the desired scall is 1000um, and the field of view is 5000um?
22 Demonstrate the adiurtmont
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Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

What is the molar mass of potassium nitrate, kno3

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa