top of page
Expert Chemistry, Biology, Physics and Math Tutoring Online and Bethesda,MD
646-407-9078
Search
The diagram below represents the bright-line spectra of four elements and a bright-line spectrum pro
January 2020 NY Regents Chemistry Exam 49 The diagram below represents the bright-line spectra of four elements and a bright-line...
938 views
0 comments
Given the potential energy diagram representing a reaction:Which numbered interval represents th
January 2020 NY Regents Chemistry Exam 44 Given the potential energy diagram representing a reaction: Which numbered interval represents...
892 views
0 comments
Given the equation representing a solution equilibrium: What occurs when Na2SO4(s) is added to this
January 2020 NY Regents Chemistry Exam 42 Given the equation representing a solution equilibrium: Solution: Increasing the...
408 views
0 comments
Given the formula of a compound:What is the molecular formula for this compound?
January 2020 NY Regents Chemistry Exam 37 Given the formula of a compound: What is the molecular formula for this compound? (1) CH (2)...
259 views
0 comments
A measured value for the atomic radius of platinum atoms was determined to be 143 picometers. Based
January 2020 NY Regents Chemistry Exam 35 A measured value for the atomic radius of platinum atoms was determined to be 143 picometers....
696 views
0 comments
Graphite and diamond are both solid forms of the element carbon. Which statement explains the diff
January 2020 NY Regents Chemistry Exam 34 Graphite and diamond are both solid forms of the element carbon. Which statement explains the...
255 views
0 comments
Given the table representing the subatomic particles in four different atoms:Which atom has a ma
January 2020 NY Regents Chemistry Exam 31 Given the table representing the subatomic particles in four different atoms: Which atom has a...
222 views
0 comments
A change in the nucleus of an atom that converts the atom from one element to another element is cal
January 2020 NY Regents Chemistry Exam 28 A change in the nucleus of an atom that converts the atom from one element to another element...
59 views
0 comments
Based on Table N, uranium-238 and uranium-235have different
January 2020 NY Regents Chemistry Exam 27 Based on Table N, uranium-238 and uranium-235 have different (1) decay modes (2) half-lives...
208 views
0 comments
Which terms represent two types of organic reactions?
January 2020 NY Regents Chemistry Exam 19 Which terms represent two types of organic reactions? (1) sublimation and deposition (2)...
87 views
0 comments
Looking for Chemistry Tutoring?
I tutor all levels of chemistry including general and organic chemistry.
bottom of page