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3 years ago

Complete this half-reaction.

Chemistry

1 answer:

Anna35 [415]3 years ago

3 0

Answer:

2Cr(s) → 2Cr3+(aq) + 3e⁻

Explanation:

The complete half reaction is 2Cr(s) → 2Cr3+(aq) + 3e⁻
The half reaction shows an oxidation reaction.
Oxidation refers to the loss of electrons by an atom of an element.
In this case, chromium atom undergoes oxidation by losing three electrons to form chromium ion.
Additionally, the oxidation number has increased from 0 to +1 which makes it an oxidation reaction.

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Iteru [2.4K]

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"Energy in waves from the sun" -> solar.
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3 years ago

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Pls help me thx! I would appreciate it!

inessss [21]

Answer:

Here just look at the pic here

Explanation:

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3 years ago

Caffeine is used commercially as a(n):

Nataly [62]

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3 years ago

Chemical change example

lord [1]

Answer: burning paper

Explanation:

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3 years ago

Determine whether the graph is that of a function by using the vertical-line test. If it is, use the graph to find (a) its domai

Ilia_Sergeevich [38]

Answer:

Following are the solution to this question:

Explanation:

If the draw a line perpendicular with y-axis thru the diagonal line check but it meets only one curved point, therefore the curve indicates a function not otherwise. They draw a vertical line perpendicular to the y-axis there, it just intersects one more chart point, which is why a graph is a feature:

In point a:

$\to Domain= [-\pi ,\pi ]\\\\\to Range = [-1,1]$

In point b:

Its y-axis length cut also by understanding the benefits of y-interception and the x-axis length gives the x-intercept.

$\to y-intercept = 1\\\\\to x-intercept = \frac{\pi}{2} ,- \frac{\pi}{2} \\\\$

In point C:

Every graph is y-axis symmetric because the left side of the column as well as the middle side of the graph is about the same.

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3 years ago