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KhanAcademyExercises

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New exercises from Khan Academy 2020-04-02T00:17:09.644641
Aggiornato: 2 ore 36 min fa

Ancient observations

Mer, 2020-04-01 22:07

Moles and molar mass

Mer, 2020-04-01 16:27
Practice converting between moles, mass, and number of particles in this set of free questions designed for AP Chemistry students.

Age word problems

Mer, 2020-04-01 14:48
Solve age word problems with a system of equations.

Test statistic and P-value in chi-square tests with two-tables

Mar, 2020-03-31 18:26
Calculate the test statistic and p-value in a chi square test for independence or homogeneity.

Identify common factors

Mar, 2020-03-31 16:24
Identify the common factors for two numbers.

Types of chemical bonds

Mar, 2020-03-31 15:55
Check your understanding of bond polarity and bond type in this set of free practice questions designed for AP Chemistry students.

Composition of mixtures

Mar, 2020-03-31 15:45
Practice determining the composition of mixtures in this set of free questions designed for AP Chemistry students.

Fractions as division word problems

Lun, 2020-03-30 22:07
Practice word problems that involve using the fraction bar as division.

Divide multi-digit numbers by 6, 7, 8, and 9 (remainders)

Lun, 2020-03-30 21:58
Practice dividing 2-, 3-, and 4-digit numbers by a 1-digit number.  Divisors are 6, 7, 8, and 9.  Quotients include remainders.

Modern discoveries

Lun, 2020-03-30 21:56

The costs of inflation

Lun, 2020-03-30 21:53
Practice what you've learned about the winners and losers from inflation and how inflation redistributes wealth in this exercise. 

Homologous series: General formula

Lun, 2020-03-30 09:52
Let's identify the members of the carbon family present in the homologous series using the general formula.

Esterification reaction

Lun, 2020-03-30 09:51
Let's practice identifying a sweet-smelling compound of ester formed in an esterification reaction.

Roles of sulphuric acid & sodium in alcohol

Lun, 2020-03-30 09:50
Let's identify the roles of sulphuric acid and sodium in the given chemical reaction.

Transporting bits over wires

Ven, 2020-03-27 20:50
Check your understanding of bandwidth and latency in internet connections, in this set of free practice questions designed for AP Computer Science Principles students.

Public key encryption

Ven, 2020-03-27 20:31
Check your understanding of cryptography and public key encryption, in this set of free practice questions designed for AP Computer Science Principles students.

Ideal gas law

Ven, 2020-03-27 19:10
Check your understanding of the ideal gas law in this set of free practice questions designed for AP Chemistry students.

Phishing and password attacks

Ven, 2020-03-27 18:55
Check your understanding of phishing attacks and strong/weak passwords, in this set of free practice questions designed for AP Computer Science Principles students.

Lossy vs. lossless compression

Ven, 2020-03-27 18:48
Check your understanding of lossy and lossless compression techniques, in this set of free practice questions designed for AP Computer Science Principles students.

Hypertext Transfer Protocol (HTTP)

Ven, 2020-03-27 18:41
Check your understanding of HTTP requests and responses, in this set of free practice questions designed for AP Computer Science Principles students.

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