Determine the oxidation state of p in po33-.

The generation currents are not substantially affected by externally applied electric fields. why not?

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How many grams of Cl are present in the mixture, 6.87*1023 molecules of PCl3 and 0.278 mol of PCl5.

What is the density of a cube that has a mass of 25 g in a volume of 125 cm 3

Identify the reagents necessary to achieve each of the following transformations: Na2Cr2O7, H2SO4, H2O EtOH, H + H2O Fe2+, NaOH Na2Cr2O7, H2SO4, H2O PCC, CH2Cl2 H2O, H + Fe2+, H + 1) R2B-H 2) H2O2, NaOH H2SO4, H2O, HgSO4 1) Br2 2) KOH H2SO4, H2O 1)

A) the ka for acetic acid (h3cco2h) is 1.737 * 10-5. what is the pka for this acid? b. use the pka calculated above to determine the ph at which [h3cco2h]=[h3cco2-].

Suppose you take a piece of hard wax from an unlit candle. After you roll the wax between your fingers for a while, it becomes soft. What State of matter is the softer wax? Is it possible for wax to change without changing state

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Foods labeled "fat free" can actually contain less than 0.5 grams of fat.

Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 + H2O + energy → C6H1206 + O2 What are the products in this chemical reaction? O A. C6H1206 + energy O B. H20 + energy O C. CoH1206+02 O D.