Chemistry Mole

How many single bonds are in this molecule?

• 8

• 10

• 11

• 12

How many pairs of SHARED electrons are shown in this image?

• 1

• 2

• 3

• 4

• 0

How many pairs of UNSHARED electrons are shown in this image?

• 1

• 2

• 3

• 4

• 0

What kind of bonds are shown in this image?

• Ionic

• Covalent, single bonds

• Covalent, double bonds

Calculate the number of atoms in 0.0340 g Zn.

• 5.200 x 10^-4 atoms Zn

• 3.130 x 10²³ atoms Zn

• 3.130 x 10²⁰ atoms Zn

• 1 atom Zn

Tags

NGSS.HS-PS1-7

What's the empirical formula of a molecule containing 18.7% of Lithium, 16.3% of Carbon and 65.0% of oxygen?

• CO₂Li₃

• Li₂CO₃

• Li₃CO₂

• LiCO₅

Which pair has the same empirical formula?

• NaCrO₄ and Na₂Cr₂O₇

• C₂H₄O₂ and C₆H₁₂O₆

• C₃H₆O₃ and C₂H₆O₂

• CH₄ and C₂H₆

A formula with the lowest whole # ratio of elements in a compound is called

• Molecular Formula

• Chemical Formula

• Empirical Formula 

• Distance Formula

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

• CH₂O

• C₂H₄O₂

• C₄H₈O₄

• C₆H₁₂O₆

Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.

•  NaPO2

• Na2PO3

• Na3PO4

• NaPO4