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vagabundo [1.1K]
3 years ago
5

If there are no changes in the oxidation state of the reactants or products of a particular reaction, that reaction is not a red

ox reaction.
Chemistry
1 answer:
dmitriy555 [2]3 years ago
3 0
Yes, that is true. in order for it to be a redox reaction, both oxidation and reduction must be occurring. 
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The sink-float method is often used to identify the type of glass material found at crime scenes by determining its density.
Olegator [25]

Answer:

<em><u>Glass that will sink</u></em>

  • alkali zinc borosilicate with a density of 2.57 g/mL in a solution with a density of 2.46 g/mL

  • potash soda lead with a density of 3.05 g/mL in a solution with a density of 1.65 g/mL

<em><u>Glass that will float</u></em>

  • soda borosilicate with a density of 2.27 g/mL in a solution with a density of 2.62 g/mL

  • alkali strontium with a density of 2.26 g/mL in a solution with a density of 2.34 g/mL

<em><u>Glass that will not sink or float</u></em>

  • potash borosilicate with a density of 2.16 g/mL in a solution with a density of 2.16 g/mL

Explanation:

Density is the property of matter that states the ratio of the amount of matter, its mass, to the space occupied by it, its volume.

So, the mathematical expression for the density is:

  • density = mass / volume

By comparing the density of a material with the density of a liquid, you will be able to determine whether object will float, sink, or do neither when immersed in the liquid.

The greater the density of an object the more it will try to sink in the liquid.

As you must have experienced many times an inflatable ball (whose density is very low) will float in water, but a stone (whose denisty is greater) will sink in water.

The flotation condition may be summarized by:

  • When the density of the object < density of the liquid, the object will float
  • When the density of the object = density of the liquid: the object will neither float nor sink
  • When the density of the object > density of the liquid: the object will sink.

<em><u>Glass that will sink</u></em>

  • alkali zinc borosilicate with a density of 2.57 g/mL in a solution with a density of 2.46 g/mL, because 2.57 > 2.46.

  • potash soda lead with a density of 3.05 g/mL in a solution with a density of 1.65 g/mL, because 3.05 > 1.65.

<u><em>Glass that will float</em></u>

  • soda borosilicate with a density of 2.27 g/mL in a solution with a density of 2.62 g/mL, because 2.27 < 2.62.

  • alkali strontium with a density of 2.26 g/mL in a solution with a density of 2.34 g/mL, because 2.26 < 2.34.

<em><u>Glass that will not sink or float</u></em>

  • potash borosilicate with a density of 2.16 g/mL in a solution with a density of 2.16 g/mL, because 2.16 = 2.16
8 0
4 years ago
Gaseous dichlorine monoxide decomposes readily to chlorine (green) and oxygen (red) gases.
Alja [10]

Chemical symbols are represented with their coefficients in a balanced reaction. Ethane and oxygen are the reactants, whereas carbon monoxide and water are the products.

4 HCl (g) + O₂ (g) → 2 Cl₂ (g) + 2 H₂O (l)

<h3>What is Carbon monoxide?</h3>

Carbon monoxide, a colorless, incredibly lethal, odorless, tasteless, and flammable gas with the chemical formula CO, is a little less dense than air. Carbon monoxide is a compound made composed of one carbon atom and one oxygen atom joined by three bonds. This is the simplest molecule in the oxocarbon family. The term "carbonyl" refers to the carbon monoxide ligand in coordination complexes. It is an essential part of many industrial chemistry procedures.

Carbon monoxide plays important biological roles in all phylogenetic kingdoms.

To learn more about Carbon monoxide from the given link:

brainly.com/question/10193078

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A laser light was shone through a diffraction grating whose lines were 1/1000 mm apart. The distance was measured between the ce
Amanda [17]
540 nm is the answer ! can you help me out please ? it is a science question add me and message me :)
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The reliability or reproducibility of a measurement is its <br> ...
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Answer:

The two most important aspects of precision are reliability and validity. Reliability refers to the reproducibility of a measurement. You quantify reliability simply by taking several measurements on the same subjects!

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Which are characteristics of a prokaryotic cell
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Answer: a prokaryotic cell lacks a nucleus and membrane, but has flagella and bound organelles

Explanation: prokaryotic cells are less complex than eukaryotic cells and are unicellular organisms

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