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New exercises from Khan Academy 2020-05-29T13:47:37.544650
Aggiornato: 1 ora 1 min fa

### Solids, liquids, and gases

Ven, 2020-05-08 19:49
Practice interpreting particulate models of solids, liquids, and gases in this set of free questions designed for AP Chemistry students.

### Normal distribution: Area between two points

Ven, 2020-05-08 19:49
Use a z-table to find the area between two given points in some normal distribution.

### Exothermic and endothermic reactions

Ven, 2020-05-08 10:43
Let's practice problems involving exothermic and endothermic reactions.

### Create two-way frequency tables

Gio, 2020-05-07 19:17
Given a Venn diagram or information about a relationship, create a two-way frequency table.

### Compare 3-digit numbers

Gio, 2020-05-07 17:34
Practice comparing 3-digit numbers within 1000.

### Properties of solids

Mer, 2020-05-06 23:48
Check your understanding of the properties of solids in this set of free practice questions designed for AP Chemistry students.

Mer, 2020-05-06 23:13
Use picture graphs to solve word problems.

### Deviation from ideal gas law

Mer, 2020-05-06 21:11
Check your understanding of how real gases deviate from ideal behavior in this set of free practice questions designed for AP Chemistry students.

### Area word problems

Mer, 2020-05-06 14:36
Let's solve a few real-world problems involving areas of rectangles.

### Identify molecular formulas

Mer, 2020-05-06 05:49
Let's practice remembering molecular formulas for some common compounds.

### Empirical rule

Mar, 2020-05-05 23:19
Practice applying the 68-95-99.7 empirical rule.

### Normal calculations in reverse

Mar, 2020-05-05 22:09
Practice finding a value in a normal density curve given an area.

### Land-Based Empires in Eurasia

Mar, 2020-05-05 20:51
Try it out!

### The Big History Story

Mar, 2020-05-05 20:50
practice

### Era 1 Overview

Mar, 2020-05-05 20:49

### Estimating P-values from simulations

Dom, 2020-05-03 17:36
Use results of simulations to estimate P-values in significance tests.

### Biotechnology

Gio, 2020-04-30 19:05

### Represent rectangle measurements

Mer, 2020-04-29 23:17
Identify length, width, area, and perimeter on rectangles.  And identify equations that will help find unknown rectangle measures, like area and perimeter.

### Solve problems with bar graphs 1

Mer, 2020-04-29 22:53