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3 years ago

Which of the following could be the name of the substance in box ‘c` choose only one box:

Chemistry

2 answers:

11Alexandr11 [23.1K]3 years ago

3 0

A is the answer i hope it helps

Drupady [299]3 years ago

3 0

I Think it is Carbon Monoxide Because of the Following Reasons :

$\clubsuit$ From the Picture, We can Notice that the Both Atoms are Approximately of Same Size or Diameter. Carbon and Oxygen have Approximately Same Diameter.

$\clubsuit$ It Cannot be Nitrogen, Because the Color of Atoms is Different. So, They must be of Different Element's Atoms.

$\clubsuit$ It Cannot be Krypton, Because Krypton is a Noble Gas it does not Pair up with other Atoms.

$\clubsuit$ It Cannot be Hydrogen Chloride, Because There is a Big Difference between the Size of Hydrogen and Chlorine Atom.

$\clubsuit$ It Cannot be Sulphur dioxide, Because Sulphur dioxide Contains 3 Atoms. One Sulphur and Two Oxygen Atoms.

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CONCLUSIONS: Suppose a student titrated a sample of monoprotic acid of unknown concentration using a previously standardized sol

Zolol [24]

Concentration of unknown acid is 0.061 M

Given:

Concentration of NaOH = 0.125 M

Volume of NaOH = 24.68 mL

Volume of acid solution = 50.00 mL

To Find:

Concentration of the unknown acid

Solution: Concentration is the abundance of a constituent divided by the total volume of a mixture. The concentration of the solution tells you how much solute has been dissolved in the solvent

Here we will use the formula for concentration:

M1V1 = M2V2

0.125 x 24.68 = 50 x M2

M2 = 0.125 x 24.68 / 50

M2 = 0.061 M

Hence, the concentration of unknown acid is 0.061 M

Learn more about Concentration here:

brainly.com/question/17206790

#SPJ4

3 0

2 years ago

A) Compute the repeat unit molecular weight of polystyrene. B) Compute the number-average molecular weight for a polystyrene for

Andrej [43]

Answer:

Explanation:

In Polystrene, the molecular formula for the repeat unit = $C_8H_8$ ;

and the atomic weights of Carbon C = 12.01 g/mol

For Hydrogen, it is 1.01 g/mol

Hence, the repeat unit molecular weight is:

m = 8 (12.01 g/mol)+8(1.01 g/mol)

m = 96.08 g/mol + 8.08 g/mol

m = 104.16 g/mol

The degree of polymerization = no-average molecular weight/repeat unit molecular weight.

Mathematically;

$DP = \dfrac{\overline M_n}{m}$

$\overline M_n= DP \times m$

$\overline M_n= 25000 \times 104.16 \ g/mol$

$\overline M_n= 2604000 \ g/mol$

7 0

2 years ago

Name the most abundant isotope for these elements: Na = ________<br><br> P = _______ Mn = ________

Elan Coil [88]

Answer: 11, Na, 23, 100, −9.529 ... phosphorus, 15, P, 31, 100, −24.441 ... manganese, 25, Mn, 55, 100, −57.706.

Explanation: Make me Brainelist

5 0

3 years ago

When trying to determine whether or not an atom gives up electrons easily, do chemists look at electronegativity or ionization p

Archy [21]

Here I found some info at Yahoo answers: https://answers.yahoo.com/question/index?qid=20090119191941AAB7oAb
The more electronegative an atom is the more unwilling it is to lose its electrons in a compound. If you do try to take a very EN atom away from a compound you'll need to apply a lot of energy for that to happen. I can give an example of a single atom though

<span>Cl has 7 valence electron filled and every atom wants to be like nobles (noble gases), so it's not going to give an electron away b/c it's really close to being like a noble gas. Noble gases are the most stable atoms, which is why I say stability counts.</span>

4 0

3 years ago

Kevin has 5 fish in his fish tank jasmine has 4 times as many fish as Kevin.How many fish does jasmine have?

madreJ [45]

Jasmine have 20 fish because4 times 5 equals 20

4 0

3 years ago