Atomic Structure
Significant Figures
Glassware Measurement
Types of Bonds
Balancing Equations and Polyatomic Ions
100

This equals the number of protons in an atom, and also the number of electrons in a neutral atom.

What is the atomic number?

100

This type of zero, found between two nonzero digits, always counts as significant.

What is a captive zero?

100

When you read glassware, you should position your eyes at this level relative to the liquid. AKA what is the thing you look at called?

What is eye level (with the meniscus)?

100

This type of bond forms between two nonmetals through the sharing of electrons.

What is a covalent bond?

100

This ion has the formula PO₄³⁻. (What is the name?)

What is phosphate?

200

This is the term for the sum of protons and neutrons in an atom's nucleus.

What is the mass number?

200

The number of sig figs in 40,500 (no decimal shown).

What is 3?

200

How much liquid is in this graduated cylinder?

80.0 mL

200

This term describes a covalent bond where electrons are shared equally because the atoms have very similar electronegativities.

What is nonpolar covalent?

200

What is the name of CO3-2

What is carbonate?

300

An atom that has gained electrons and now carries a negative charge.

What is an anion?

300

The number of sig figs in 0.006090

What is 4?

300

How much liquid is in this graduated cylinder? 

33.5 mL! There are 10 lines between 30 and 35, so each one has to be 0.5 mL.

300

What type of bond does CH4 have?

What is a covalent bond (two nonmetals bonded, sharing electrons)

300

Balance this equation: ___Mg + ___N₂ → ___Mg₃N₂

What is 3Mg + N₂ → Mg₃N₂?

400

Two atoms both have 8 protons, but one has 8 neutrons and the other has 10 neutrons. What term describes their relationship?

What are isotopes?

400

3.8 × 4.256 = ? (correct sig figs)

What is 16?

400

Read this meniscus. 

What is 2.74?

400

What type of bond does MgO have?

Ionic Bond. Mg is a metal and O is a nonmetal.

400

Balance this equation: ___Na + ___Cl₂ → ___NaCl

What is 2Na + Cl₂ → 2NaCl?

500

A silver atom has 47 protons and a mass number of 108. Find the number of neutrons.

What is 61?

500

14.2 + 3.687 + 108.94, rounded to the correct number of decimal places.

What is 126.8?

500

Read it 

What is 5.60 mL

500

What type(s) of bonds does NaNO3- have?

Both Covalent and Ionic!  Features covalent bonds between nitrogen and oxygen inside the nitrate ion NO3-, and an ionic bond holding the sodium cation Na+  to the nitrate anion

500

Balance this equation: ___C₂H₆ + ___O₂ → ___CO₂ + ___H₂O

What is 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O?