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aev [14]
3 years ago
12

Devices that allow you to do work in an easier way.​

Chemistry
2 answers:
IrinaVladis [17]3 years ago
6 0

Answer:

The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.

romanna [79]3 years ago
6 0

Answer:

The most important devices that made work easier are:

The wheel

The axle

The lever

The inclined plane

The pulley

The screw

The wedge

these are known as the the "six simple machines"

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2 years ago
2MG+O2 ...........2MGO
Galina-37 [17]
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X mol = 12 g of Mg

x = 0.5 moles of Mg

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So

0.5 moles of MgO

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3 years ago
Rank the solutions below in order of increasing acidity. (Drag and drop into the appropriate area)
Vladimir79 [104]

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0.1 M NaOH, 3 M NH3, 0.01 M CH3COOH, 0.01 M H2SO4, 0.1 M HCl

Explanation:

Strong acids are more acids than weak acids. In the same way, strong bases are more basic than weak bases that are in the same concentration.

Then, the more concentrated acid or base will be more acidic or basic.

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H2SO4. Strong acid

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HCl. Strong acid

The less acid (More basic):

<h3>0.1 M NaOH, 3 M NH3, 0.01 M CH3COOH, 0.01 M H2SO4, 0.1 M HCl</h3>

Strong base, weak base, weak acid, diluted strong acid, undiluted strong acid

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