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Ivanshal [37]
3 years ago
12

How could you ensure that all the spectroscopes used the same calibration line and equation? What would you need to be sure was

always the same? What could be changed without affecting the calibration?
Chemistry
1 answer:
NISA [10]3 years ago
8 0
People had asked this many times and that is why they came up with methods and standards that will answer these type of questions. You can look it up in the NIST or the  National Institute for Standards and Technology.
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You find a geode while hiking. You place it on a scale and find it has a mass of 62 g.
dexar [7]

Answer:

B

Explanation:

I think that's it.. hope I helped you

5 0
3 years ago
The reaction A + 2B ® products has been found to have the rate law, rate = k[A] [B]2. While holding the concentration of A const
Over [174]

Answer:

The rate of the reaction will increase by a factor of 9.

Explanation:

Hello,

In this case, considering the given second-order reaction, whose rate law results:

r=k[A] [B]^2

We easily infer that at constant concentration of A but tripling the concentration of B, we are going to obtain the following increasing factor while holding the remaining variables constant:

Increase\ factor=\frac{r_{final}}{r_{initial}} =\frac{k[A][3*B]^2}{k[A][B]^2} =\frac{3^2}{1} \\Increase\ factor=9

Best regards.

3 0
3 years ago
Choose the best answer that completes the sentence. A complex ion contains _________________. Group of answer choices a central
STatiana [176]

Answer:

A complex ion contains a central metal ion bound to one or more ligands

Explanation:

A complex ion is consists of a central atom or ion, that is usually metallic, called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents.

An example of a complex ion is

[Co(NH3)6]3+

Please go through the attached file for a proper representation of the complex ion.

5 0
3 years ago
Read 2 more answers
Please help fast, I will give brainliest!
miss Akunina [59]
I think it’s 20 mol
Sorry if I’m wrong
4 0
3 years ago
Read 2 more answers
Molecules are the smallest units of matter with the characteristic properties of a substance.
Vilka [71]
False, Atoms are the smallest units of matter that display both the chemical and physical properties of it, based on the structure of the atom.
3 0
3 years ago
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