I need a essay on what I learned in chemistry

How you would test the best method for separating the precipitate from the liquid in curdled milk?

Which of the following prefixes means seven

Be sure to answer all parts. Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH with 0.1000 M HBr solution after the following additions of acid: (a) 9.00 mL pH = 12.73 (b) 29.80 mL pH = 1 (c) 38.00 mL pH = 1.9

How many photons does a 3.2 mw helium-neon laser (λ = 633 nm) emit in 1 second? how many photons does a 3.2 helium-neon laser ( = 633) emit in 1 second? 7.6*1018 2.5*1018 5.1*1016 1.0*1016?

Zinc (Zn loses 2 valence electrons) and Nitrogen (N) How does zinc complete the octet rule? What charge is on the zinc ion? What type of ion is zinc (cation/anion) ? How does nitrogen complete the octet rule? What charge is on the nitrogen ion?

Compare and contrast the outer core and the inner core.

What colors make the color turquoise?

12.23 g of ammonia (NH3) are dissolved in enough water to make 560.0 mL of solution. How many moles of NH3 are added to the water?

According to the ph scale, what is the approximate ph of acid rain? a. 4.0 b. 4.5 c. 5.0 d. 5.5

You find a little bit (0.150g) of a chemical marked Tri-Nitro-Toluene, and upon combusting it in oxygen, collect 0.204 g of CO2 and 0.030 g H2O (we'll assume that these are the products, along with nitrogen).