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Zolol [24]
1 year ago
12

The diagram shows one period of the Periodic Table. Li ,Be ,B , C,N,O,F,Ne .Which two elements form acidic oxides?

Chemistry
1 answer:
Rudik [331]1 year ago
6 0

Answer:

A -carbon and lithium.

Explanation:

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When utilizing a transmission electron microscope, why is it necessary to stain the specimen with heavy metal salts?
Schach [20]
Staining specimen with heavy metal salts (e.g. tungsten, molybdenum) allows you to see the specimen better with higher contrast when electron beam deflects off of your sample.
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3 years ago
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You find a compound composed only of element "X" and hydrogen, and know that it is 91.26% element X by mass. Each molecule has 2
worty [1.4K]
Since you know the ratio of atoms, you can start to put a formula togeter. The formula might look like:<span>
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4 0
3 years ago
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1. What is the balanced chemical equation for the reaction that takes place between bromine and sodium iodine?
barxatty [35]
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Identify the term that applies to each definition.
Illusion [34]

Answer:

A. Reference blank

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C. Transmittance

D. Absorbance

E. Wavelength

Explanation:

A reference blank is a sample prepared using the solvent and any other chemicals in the sample solutions, but not the absorbing substance.

A square-shaped container, typically made of quartz, designed to hold samples in a spectrophotometer is known as Cuvettes.

A measurement of the amount of light that passes through a sample or percentage of light transmitted by the sample, with the respective intensities of the incident and transmitted beams is called Transmittance.

The measurement of the amount of light taken in by a sample is known as Absorbance

The wavelength is also the distance travelled by the wave during a period of oscillation. In spectrophotometry, the unit is inversely proportional to energy and commonly measured in nanometers

6 0
3 years ago
Given 700 ml of oxygen at 7 ºC and 80.0 cm Hg pressure, what volume does it take at 27 ºC and 50.0 cm Hg pressure?
katen-ka-za [31]

Answer:

I think that it might be 2.7

Explanation:

7 0
3 years ago
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