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Basile [38]
3 years ago
15

Need help ASAP !!! Please answer this

Chemistry
1 answer:
timofeeve [1]3 years ago
7 0
The density is 15.23 g/cm^3
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What general rule can be followed when choosing a type of solvent to dissolve a particular solid?
Fittoniya [83]
 <span>the polarity of the solute or the solvent. 

for example: 
oil will not mix with water because oil molecules are nonpolar however water moleculses are polar. so, they will not mix with each other. 

when we put sodium chloride in water, sodium chloride will be easily dissoved. because both sodium chloride and water are polar. 

in other case, if we put sodium chloride and hexane together. sodium chloride will not dissove in hexane, because hexane is a nonpolar solvent. 

finally, if we try to mix hexane and bromine together, they will mix uniformly. because both hexane and bromine are nonpolar. (note: most diatomic molecules are nonpolar, such as hydrogen gas, oxygen gas, chlorine gas, etc. ) 

so just remember, nonpolar and nonpolar will dissovle each other. and polar and polar will dissolve each other.</span>
4 0
4 years ago
The mineral vanadinite has the formula pb5(vo4)3cl. what mass percent of chlorine does it contain?
lubasha [3.4K]

The molar mass of vanadinite is 1416.27 g/mol. Looking at the molecular formula we can see that there is 1 mole of Cl for every mole of vanadinite. Therefore:

mass percent = [(1 mole Cl * 35.45 g/mol) / (1 mole Pb5(VO4)3Cl * 1416.27 g/mol)] * 100%

<span>mass percent = 2.50%</span>

5 0
3 years ago
Consider the Lewis structure for glycine, the simplest amino acid: (a) What are the approximate bond angles about each of the tw
UkoKoshka [18]

Each carbon is tetrahedrally planar and has three sections, making all bond angles in (a) 120°.(b) hybridization with sp2.(c) If a double bond is present in the compounds, one of the bonds is a sigma connection and the other a pi bond.

<h3>What is an example of an amino acid?</h3>

A basic amino group (NH2), a carboxyl group group (COOH), and an organic Aromatic rings that really is specific to each amino acid make up an amino acid, an organic molecule.

<h3>Which five amino acids are there?</h3>

You must obtain the nine essential amino acids cytochrome c, isoleucine, hcl, lysine, methionine, phenylalanine, alanine, tryptophan, and valine through your food.They are essential for several bodily processes, such as protein biosynthesis, tissue regeneration, and nutrient uptake.

To know more about Lewis structure visit:

brainly.com/question/20300458

#SPJ4

6 0
1 year ago
Which of the following best describe the main function of the cyrculatori system ?
ICE Princess25 [194]

Answer:

D

Explanation:

To coordinate all other human body system so that they can function together to maintain homeostasis

7 0
3 years ago
Hi if u see this help me please
zhuklara [117]

Answer:

Amoebas, Yeasts, Hydras, and Ferns only

Explanation:

This is because they can asexually reproduce which is why their offspring wil be identical

4 0
3 years ago
Read 2 more answers
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