Earth contains distinct layers, including the inner core, outer core, mantle, crust, asthenosphere, and lithosphere. A diagram of Earths layers is provided. Which letter in the diagram identifies the solid layer of Earth which is made up of mostly magma?

1. Layer D

2. Layer B

3. Layer C

4. Layer A

I NEED THE ANSWER ASAP PLEAS HURRY I ONLY HAVE 5 MIN LETS PLEAS HURRR

10. according to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0