Two up quarks and one down quark make up which of the following particles?

A) proton

B) neutron

C) lepton

D) electron

The methylene chloride solution is filtered through sodium sulfate to: a. Neutralize any acidic contamination b. Neutralize any alkaline contamination c. Dry the methylene chloride by removing water d. Precipitate the caffeine from solution

Why is an apple an example of matter

Which goes with which? A. 1s B. 2s C. 3s D. 4s E. 5s F. 6s G. 7s H. 2p I. 3p J. 4p K. 5p L. 6p M. 7p N. 3d O. 4d P. 5d Q. 6d R. 7d S. 4f T. 5f 1. What orbital is filled directly before the 4s? 2. What orbital is filled directly after the 4s? 3.

What type of bond is easily disrupted in aqueous solutions?

What are the two types of pure substances

Which of the follwing is a pure substance: sugar, salt, water, or pepper? Explain how you know.

A chemistry student needs of isopropenylbenzene for an experiment. She has available of a w/w solution of isopropenylbenzene in carbon tetrachloride. Calculate the mass of solution the student should use.

Can an organism carry out cellular respiration without photosynthesis?

Predict the product for PtCl4 + F2

Calculate the formula mass of ethanol, c2h5oh. express your answer to three significant figures and include the appropriate units.