Selected Metric Prefixes - Revision history

Conrad: Show the official table image instead of a wikitext copy; row anchors now land on the image

2026-10-25T21:39:52Z

Show the official table image instead of a wikitext copy; row anchors now land on the image

Conrad: Make the Regents Exam Questions table scroll sideways on narrow screens instead of widening the page

2026-10-25T21:31:25Z

Make the Regents Exam Questions table scroll sideways on narrow screens instead of widening the page

Conrad: Chemistry reference tables (2025 Edition): new reference table page

2026-10-25T19:50:37Z

Chemistry reference tables (2025 Edition): new reference table page

New page

{{Chemreftable
|name=Selected Metric Prefixes
|prev=Selected Units
|desc=Selected Metric Prefixes from the NYS Chemistry Reference Tables (2025 Edition): kilo, milli, micro and nano with their symbols and factors. Used for nanometer wavelengths, kilogram masses, kilojoules and milliliter volumes in Chemistry Regents questions.
}}
The '''Selected Metric Prefixes''' table from the ''Reference Tables for Physical Science: Chemistry'' (2025 Edition) gives the four prefixes used on the exam with their symbols and factors. It is needed whenever a question's quantities and the equation's units do not match: nanometer wavelengths on [[The Electromagnetic Spectrum]] ([[HS-PS4-4]]), kilogram masses and kilojoule energies in heat calculations ([[HS-PS3-1]]), milliliter volumes in molarity calculations ([[HS-PS1-10]]) and kilopascal pressures ([[HS-PS1-9]]).

{| class="wikitable" style="text-align:center;"
! Name !! Symbol !! Factor
|-
| kilo– || k || 103
|-
| milli– || m || 10−3
|-
| micro– || μ || 10−6
|-
| nano– || n || 10−9
|}

== What the prefixes table shows ==
A prefix multiplies the unit it is attached to by the factor in the table: 1 kg = 103 g, 1 mL = 10−3 L, 1 μg = 10−6 g, 1 nm = 10−9 m. The 2011 edition's Table C also listed deci-, centi- and pico-; the 2025 edition keeps only these four.

== Regents Exam Questions ==
Released Regents questions that cannot be answered without this table, listed by exam. Each link opens the question with its answer key; the standard is the one the question assesses.

{| class="wikitable" style="width:100%; text-align:center"
! style="padding: 0.5em 1.5em;" | Exam
! style="padding: 0.5em 1.5em;" | Cluster
! style="padding: 0.5em 1.5em;" | Question
! style="padding: 0.5em 1.5em;" | Standard
|-
| style="background-color:white;" | [[August 2026 Chemistry Exam|August 2026 Chemistry Regents]]
| style="background-color:white;" | [[Questions:The Great American Solar Eclipse|The Great American Solar Eclipse]]
| style="background-color:white;" | [[Questions:The Great American Solar Eclipse#q1|Question 10]]
| style="background-color:white;" | [[HS-PS4-4]]
|-
| rowspan="3" style="background-color:white;" | [[June 2026 Chemistry Exam|June 2026 Chemistry Regents]]
| style="background-color:white;" | [[Questions:Urban Heat Islands|Urban Heat Islands]]
| style="background-color:white;" | [[Questions:Urban Heat Islands#q2|Question 20]]
| style="background-color:white;" | [[HS-PS3-1]]
|-
| style="background-color:white;" | [[Questions:Urban Heat Islands|Urban Heat Islands]]
| style="background-color:white;" | [[Questions:Urban Heat Islands#q3|Question 21]]
| style="background-color:white;" | [[HS-PS4-4]]
|-
| style="background-color:white;" | [[Questions:Clock Reaction|Clock Reaction]]
| style="background-color:white;" | [[Questions:Clock Reaction#q5|Question 32]]
| style="background-color:white;" | [[HS-PS1-10]]
|}

@@ Line 6: / Line 6: @@
 The '''Selected Metric Prefixes''' table from the ''Reference Tables for Physical Science: Chemistry'' (2025 Edition) gives the four prefixes used on the exam with their symbols and factors. It is needed whenever a question's quantities and the equation's units do not match: nanometer wavelengths on [[The Electromagnetic Spectrum]] ([[HS-PS4-4]]), kilogram masses and kilojoule energies in heat calculations ([[HS-PS3-1]]), milliliter volumes in molarity calculations ([[HS-PS1-10]]) and kilopascal pressures ([[HS-PS1-9]]).
-{| class="wikitable" style="text-align:center;"
+[[File:Selected Metric Prefixes.png|380px|class=img-fluid|alt=Selected Metric Prefixes from the Chemistry Reference Tables (2025 Edition)]]
 == What the prefixes table shows ==

@@ Line 24: / Line 24: @@
 Released Regents questions that cannot be answered without this table, listed by exam. Each link opens the question with its answer key; the standard is the one the question assesses.
 {| class="wikitable" style="width:100%; text-align:center"
 ! style="padding: 0.5em 1.5em;" | Exam
@@ Line 48: / Line 49: @@
 | style="background-color:white;" | [[HS-PS1-10]]
 |}