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swat32
3 years ago
9

Brainiest and 10 Points Which has a HIGHER frequency? A. Visible B. Ultraviolet

Chemistry
1 answer:
katrin [286]3 years ago
4 0

Answer:

B. Ultraviolet

Explanation:

UV has a higher frequency and shorter wavelength than visible light

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A sample from solution a and solution b were each tested with blue colored glucose indicator solution before the solutions were
vova2212 [387]
With the given problem you gave here, I can't answer the question because I need more details. Luckily, I found a similar problem that's provided with a diagram and a table shown in the attached picture.

This test is called the Benedict's test which is used as test for presence of sugars. If the solution contains sugar, like glucose, the solution would turn from blue to red. If not, it would stay blue. <em>Therefore, the correct results would be that in row 3.</em>

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3 years ago
Can you please help me?
lorasvet [3.4K]

Answer:

60 moles of NaF

Explanation:

The balanced equation for the reaction is given below:

Al(NO3)3 + 3NaF —> 3NaNO3 + AlF3

From the balanced equation above,

3 moles of NaF reacted to produce 1 mole of AlF3.

Therefore, Xmol of NaF will react to produce 20 moles of AlF3 i.e

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Xmol of NaF = 60 moles

Therefore, 60 moles of NaF are required to produce 20 moles of AlF3.

4 0
3 years ago
If you used .010 moles of baking soda, what mass of carbon dioxide should be produced?
abruzzese [7]

Answer:

d

Explanation:

6 0
3 years ago
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How do you know when a substance is boiling?
IrinaVladis [17]
When the substance is creating gases. Sometimes when it’s bubbling up
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Which type of matter is composed or two or more elements that are chemically combined in a fixed proportion?
lions [1.4K]
Hello.

When dealing with two or more elements in a fixed proportion, your answer is going to be "B.) Compound." The explanation is pretty basic when you narrow it down - think of it like the English version of a compound sentence; there are two independent clauses that have related ideas (such as this one, for example).

Let's use an example of a compound element, such as H_{2}O, or Water.
This is a compound element that is composed of the two elements "Hydrogen" and "Oxygen" - for every 2 Hydrogen atoms there is one Oxygen atom.

I hope this helps!
6 0
3 years ago
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