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Chemistry: explore STEM content (page 25 of 47) · openstem

All fields Software Mathematics Physics Chemistry Biology Engineering Astronomy Environmental Other Chemistry Chemistry groups

Explore STEM Content

Search the community's STEM library — free to study, yours to make your own.

Chemistry

Reactions, bonding and organic chemistry on openstem — flashcards, notes, quizzes and molecule structures shared by the community. Study free, or clone into your library.

Content Groups1

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Note~378 words · 2 min

Reading rate graphs: order from shape, rate from gradient Two different graphs answer two different questions about a reaction. A RATE-vs-CONCENTRATION graph tells you the reaction order — how strongly rate depends on how much reactant is p

Chemistry

Chemistry · L3 · Reading Rate Graphs

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Chemistry · L3 · Reading Rate Graphs

Collection4 items

01Chemistry · L3 · Entropy and the Second Law

02Chemistry · L3 · Entropy and the Second Law

03Chemistry · L3 · Gas Expanding to Fill a Container — Entropy Increase

+1 more

Chemistry

Chemistry · L3 · Entropy and the Second Law

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Chemistry · L3 · Entropy and the Second Law

Quiz5 questions

What colour does a rusty nail turn?

ABright blueBOrange-brownCPurpleDBlack

Chemistry

Chemistry · L1 · Colours That Change

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Chemistry · L1 · Colours That Change

Collection4 items

01Chemistry · L4 · Complex Ions and Solubility

02Chemistry · L4 · Complex Ions and Solubility

03Chemistry · L4 · Amphoteric hydroxide dissolving via complex-ion formation

+1 more

Chemistry

Chemistry · L4 · Complex Ions and Solubility

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Chemistry · L4 · Complex Ions and Solubility

Flowchart21 objects

Chemistry

Chemistry · L3 · Count the Carbons, Pick the Stem

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Chemistry · L3 · Count the Carbons, Pick the Stem

MoleculeNCC(=O)O

Chemistry

Chemistry · L4 · Glycine — the simplest amino acid

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Chemistry · L4 · Glycine — the simplest amino acid

Flowchart7 objects

Chemistry

Chemistry · L1 · What Is Air Made Of?

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Chemistry · L1 · What Is Air Made Of?

Collection4 items

01Chemistry · L1 · Sour or Soapy? Acids and Bases in the Kitchen

02Chemistry · L1 · Sour or Soapy? Acids and Bases in the Kitchen

03Chemistry · L1 · Sour or Soapy Taste Test

+1 more

Chemistry

Chemistry · L1 · Sour or Soapy? Acids and Bases in the Kitchen

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Chemistry · L1 · Sour or Soapy? Acids and Bases in the Kitchen

Collection7 items

01Chemistry · L3 · Caffeine

02Chemistry · L3 · Water (H₂O)

03Chemistry · L3 · Ethanol

+4 more

Chemistry

Chemistry · L3 · Molecules & Reactions

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Chemistry · L3 · Molecules & Reactions

Quiz5 questions

What are the three things every flame needs to keep burning?

AFuel, oxygen, and heatBWater, salt, and sugarCWax, string, and lightDCold air, wax, and water

Chemistry

Chemistry · L1 · Why a Candle Burns

@openstem

Chemistry · L1 · Why a Candle Burns

Collection4 items

01Chemistry · L4 · Addition and Elimination Mechanisms

02Chemistry · L4 · Addition and Elimination Mechanisms

03Chemistry · L4 · E1 vs E2: reading the pathway from substrate, base, and solvent

+1 more

Chemistry

Chemistry · L4 · Addition and Elimination Mechanisms

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Chemistry · L4 · Addition and Elimination Mechanisms

Flowchart15 objects

Chemistry

Chemistry · L4 · Galvanic vs electrolytic cells: energy conversion & examples

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Chemistry · L4 · Galvanic vs electrolytic cells: energy conversion & examples

Quiz6 questions

What happens to energy when a chemical bond is broken?

AEnergy is always taken inBEnergy is always given outCNo energy change happens at allDIt depends only on the temperature of the room

Chemistry

Chemistry · L2 · Energy Stored in Chemical Bonds

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Chemistry · L2 · Energy Stored in Chemical Bonds

Collection5 items

01Chemistry · L5 · Computational Chemistry & DFT Basics

02Chemistry · L5 · Computational Chemistry & DFT Basics

03Chemistry · L5 · Choosing a Computational Method

+2 more

Chemistry

Chemistry · L5 · Computational Chemistry

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Chemistry · L5 · Computational Chemistry

Flowchart15 objects

Chemistry

Chemistry · L3 · Nuclear Chemistry · flowchart

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Chemistry · L3 · Nuclear Chemistry · flowchart

MoleculeC

Chemistry

Chemistry · L2 · Methane (CH₄)

@openstem

Chemistry · L2 · Methane (CH₄)

Collection5 items

01Chemistry · L1 · How Soap Cleans

02Chemistry · L1 · How Soap Cleans

03Chemistry · L1 · Soap's Two Ends

+2 more

Chemistry

Chemistry · L1 · How Soap Cleans

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Chemistry · L1 · How Soap Cleans

Flowchart11 objects

Chemistry

Chemistry · L3 · Gas Laws · flowchart

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Chemistry · L3 · Gas Laws · flowchart

Flowchart13 objects

Chemistry

Chemistry · L4 · Amphoteric hydroxide dissolving via complex-ion formation

@openstem

Chemistry · L4 · Amphoteric hydroxide dissolving via complex-ion formation

Flowchart17 objects

Chemistry

Chemistry · L4 · Electrolytic Refining of Copper: Anode Mud vs Dissolved Impurities

@openstem

Chemistry · L4 · Electrolytic Refining of Copper: Anode Mud vs Dissolved Impurities

Flowchart19 objects

Chemistry

Chemistry · L4 · Integrated Rate Laws: concentration-time relationships, half-lives, and linearization · flowchart

@openstem

Chemistry · L4 · Integrated Rate Laws: concentration-time relationships, half-lives, and linearization · flowchart

Collection4 items

01Chemistry · L3 · Empirical and Molecular Formula

02Chemistry · L3 · Empirical and Molecular Formula — 5 Q

03Chemistry · L3 · Empirical and Molecular Formula

+1 more

Chemistry

Chemistry · L3 · Empirical and Molecular Formula

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Chemistry · L3 · Empirical and Molecular Formula

Flowchart13 objects

Chemistry

Chemistry · L5 · The Kinetic Isotope Effect · flowchart

@openstem

Chemistry · L5 · The Kinetic Isotope Effect · flowchart

Flowchart13 objects

Chemistry

Chemistry · L2 · Groups of the Periodic Table

@openstem

Chemistry · L2 · Groups of the Periodic Table

Note~704 words · 4 min

Intermolecular Forces A covalent bond is a strong force WITHIN a molecule, holding its atoms together. An intermolecular force (IMF) is a much weaker force BETWEEN separate molecules. IMFs are what a substance has to overcome to melt or boi

Chemistry

Chemistry · L3 · Intermolecular Forces

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Chemistry · L3 · Intermolecular Forces

Note~846 words · 4 min

Stereochemistry: Chirality, Enantiomers, and R/S Naming Two molecules can share exactly the same atoms, connected in exactly the same order, and still be different compounds — differing only in how their atoms are arranged in three-dimensio

Chemistry