NY Regents Chemistry Practice Questions
20 free NY Regents Chemistry practice questions with worked answers. Tap an option to check your answer and read the explanation — then get a personalized study plan.
What is the number of protons in an atom with the electron configuration of 2–5?
In the wave-mechanical model of an atom, an orbital is defined as
In the ground state, which shell of a potassium atom has an electron with the greatest amount of energy?
This short set is scored adaptively and keeps its own count. It's separate from the 20 free NY Regents Chemistry questions on this page, which carry on below.
Which phrase describes two atoms that contain the same number of protons but a different number of neutrons?
All atoms of an element have the same
Which Group 15 element is classified as a metal?
Compared to the number of electron shells and radius of an aluminum atom in the ground state, a boron atom in the ground state has
Hydrogen sulfide, , is classified as a
A structural formula differs from a molecular formula in that a structural formula shows the
| Name | Molar Mass (g/mol) |
|---|---|
| methanal | 30.0 |
| ethanal | 44.1 |
| propanal | 58.1 |
| butanal | 72.1 |
| pentanal | 86.1 |
Which type of reaction occurs when a compound is separated into its elements?
Which terms represent two categories of compounds?
When an atom of hydrogen and an atom of chlorine combine to form a molecule of hydrogen chloride, a bond is
All atoms of the element vanadium must have the same
Which sample of matter can be separated into two different substances by physical means?
Two liquids can be separated by distillation due to a difference in
Which unit can be used to express the concentration of a solution?
Compared to the freezing point and boiling point of water at 1.0 atm, a aqueous solution of NaCl at 1.0 atm has
Which form of energy is converted to thermal energy when propane burns in air?
According to the kinetic molecular theory, which statement explains why an ideal gas can be compressed to a smaller volume?
Under which conditions of temperature and pressure does a sample of propane behave least like an ideal gas?
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