Sig Figs & Unit Conversions
Naming Compounds
Periodic Trends
Chemical vs Physical Changes
Matter & Its Properties
200

Significant figures in 0.0470

What is 3?

200

NaCl

What is the chemical formula for Sodium chloride?

200

As you move left to right across a period, this property generally increases.

What is Electronegativity?

200

Melting ice is an example of this type of change

What is a physical change?

200

The three states of matter

What are Solid, Liquid, and Gas?

400

48.0 divided by 3.2 with correct significant figures

What is 15?

400

N2O5

What is the chemical formula for Dinitrogen pentoxide?

400
Between Na and Cl, this element has the larger atomic radius (due to fewer protons pulling on outer electrons in the same period).

What is Na (sodium)? 

400

Burning wood is an example of this type of change

What is a chemical change?

400

One type of matter consists of one type of atom, while another is two or more elements chemically combined.

What is the difference between an element and a compound?

600

The conversion of 8.75 kilometers to millimeters

What is 8,750,000 mm?

600

HNO3

What is the chemical formula for Nitric acid?

600

This element in period 2 breaks the expected trend by having a lower ionization energy than the element to its left.

What is Oxygen?

600

A substance that dissolves in water recovered by evaporation experiences a _______

What is a physical change?

600

Two or more substances physically combined

What is a mixture?

800

12.011 + 0.34 + 9.1 with the correct amount of significant figures

What is 21.5?

800

Fe2(SO4)3

What is the chemical formula for Iron(III) sulfate?

800

The arrangement of Ca, C, F, Al in order of increasing electronegativity

What is Ca < Al < C < F?

800

Common signs of a chemical change (list at least 2)

What are color changes, oxidization, release of odor/light, and the formation of a precipitate or gas?

800

The property that describes how much mass is in a given volume

What is density?

1000
The correct way to write 1000 in scientific notation with 4 significant figures

What is 1.000 × 10³?

1000

Ca(H2PO4)2

What is the chemical formula for Calcium dihydrogen phosphate?

1000

This element has the highest electronegativity despite an ambiguous electron affinity

What is Fluorine?
1000

Electrolysis splitting water into H₂ and O₂ is _______

What is a chemical change?

1000

This common substance is considered a mixture because it contains gases like N₂, O₂, Ar, and CO₂ in variable proportions.

What is air?

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