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user100 [1]
3 years ago
5

Which statement describe molecules?

Chemistry
2 answers:
antoniya [11.8K]3 years ago
6 0

Answer:

A group of atoms bonded together by different chemical reactions. It is the smallest fundamental unit of a chemical compound.

Explanation:

castortr0y [4]3 years ago
5 0

Answer:Molecules are made of 2 or more atoms, molecules range in size, and molecules are made of atoms of the same element or different elements

Explanation:

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In the molecule XeF2 the xenon uses which type of hybrid? O spºd O spºd? Osp? O sp3 Osp
ollegr [7]

Answer:

sp^3d

Explanation:

The hybridization of the any molecule can be calculated by the formula \frac{number\ of\ valence\ electron\ of\ central\ atom+number\ of\ monovalent\ atom\ -chare\ with\ sign}{2}

We know that Xe have 8 valence electron and 2 monovalent atom  (F) are attached with Xe and there is no charge

So hybridization =\frac{8+2-0}{2}=5

So the hybridization will be sp^3d

Note -

2 for sp

3 for sp^2

4 for sp^3

5 for  sp^3d

6 0
2 years ago
Select all the statements that accurately describe chemical reactions: Question 2 options: The number of atoms decreases when a
Lemur [1.5K]

Answer:

There is the same amount of matter before and after the reaction

The atoms are arranged in different compounds and molecules.

There are the same types and number of atoms before and after the reaction

Explanation:

--The same amount of matter before and after the reaction and the same types and number of atoms before and after the reaction is because of the law of conservation of mass. Matter cannot be created or destroyed.

--the reacting atoms and molecules will undergo a transformation to different molecules and compounds. Can be predicted because of the types of chemical reactions:

combination (combining 2 elements to create a new compound)

Decomposition (a compound breaking down into different parts)

Single and Double displacement (the molecules/ atoms will change who they are paired with)

5 0
3 years ago
A saturated solution of potassium chlorate is dissolved in 100g of water. If the saturated solution is cooled from 90 degrees Ce
dedylja [7]

Mass would crystallize out : 24 g

<h3>Further explanation </h3>

Solubility is the maximum amount of a substance that can dissolve in some solvents. Factors that affect solubility

  • 1. Temperature:
  • 2. Surface area:
  • 3. Solvent type:
  • 4. Stirring process:

We can use solubility graph to solve this.

solubility KClO₃ at 90°C=52 g

solubilty KCl₃ at 60°C= 28 g

Mass would crystallize out = 52 - 28 =24 g

4 0
2 years ago
Examine the typical street scene on the right. Draw and fill in the table. In column A, name five activities shown in which ther
valkas [14]

so a cat and a mouse walk in to a store

5 0
3 years ago
A filament at which temperature would have the most light absorbed by a piece of yellow glass?
stepladder [879]
Soft light (answer) is the filament between (2700k-3000k). 
 The higher the kelvin number the whiter the light.

3500k-4100k is bright white/cool white

5000k-6500k is daylight 

\and those are the three primary colors of color temperature
6 0
2 years ago
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