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viktelen [127]
3 years ago
6

Who discovered the neutron? Bohr Chadwick Curie Schrodinger

Chemistry
2 answers:
Shtirlitz [24]3 years ago
6 0
Chadwick did!

Hope this helps!
never [62]3 years ago
4 0
Chadwick discovered the neutron mate.
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Acetaminophen is the active ingredient in Tylenol.
Tomtit [17]

Explanation:

a. Write the molecular formula of the compound.

Acetaminophen contains 8 carbon atoms, 9 Hydrogen atoms, 1 Nitrogen atom and 2 Oxygen atoms.

The molecular formular is given as;  C8H9NO2

b. What is the hybridization state of each C, N, and O atom?

From the image attached;

All the carbon atoms in the benzene ring has hybridization of sp2.

The carbon that is doubly bonded (carbonyl) to the oxygen has hybridization of sp2

The last carbon to the right has hybridization of sp3

The hybridization of nitrogen in the compound is sp3 hbridized.

Oxygen atom in alcohol  is sp3 hybridised

Oxgen in the carbonyl group is sp2 hybridized.

3 0
3 years ago
The________ cation will precipitate after the_________ step. Then the _________cation will precipitate after the________ step.
Novay_Z [31]

Answer:

f. Sn^4+

c. second

e. Al^3+

d. third

Explanation:

This question comes from a quantitative analysis showing the flowchart of a common scheme for identifying cations.

Now, from the separation scheme, Let's assume that Sn⁴⁺ & Al³⁺ were given; Then, Yes, the separation will work.

However, there will be occurrence of precipitation after the 1st step1.

So,  the <u>Sn⁴⁺</u> cation will precipitate after the <u>second </u>step. Then the <u>Al³⁺</u> cation will precipitate after the <u>third</u> step.

8 0
3 years ago
A small helium tank measures about two feet high. Yet it can fill over 50 balloons! How can such a small tank contain enough hel
ziro4ka [17]
It will only take a small amount of helium when inflating balloons. For example, an 11" balloon only needs 0.015 m3 of helium. So it make sense, why a two feet helium tank can inflate at about 50 balloons. Also, the size tank (2 ft. high) does not define the capacity of helium it contains. 
7 0
4 years ago
The density of platinum is 21.45 g/cm3 at 20 ∘C. Calculate the mass of 78.00 cm3 of platinum at this temperature.
sasho [114]
D = 21.45 g/cm³

V = 78.00 cm³

D = m / V

21.45 = m / 78.00

m = 21.45 x 78.00

m = 1673.1 g

hope this helps!
5 0
3 years ago
The reaction of nh3 and o2 forms no and water. the no can be used to convert p4 to p4o6, forming n2 in the process. the p4o6 can
DENIUS [597]

The series of reactions is:

4 NH3 + 5 O2 → 4 NO + 6 H2O <span>
6 NO + P4 → P4O6 + 3 N2 
P4O6 + 6 H2O → 4 H3PO3 
4 H3PO3 → PH3 + 3 H3PO4 </span>

<span>
We multiply the first equation by a number 3 and all the other equations by number 2, so that we get: 
12 NH3 + 15 O2 → 12 NO + 18 H2O 
12 NO + 2 P4 → 2 P4O6 + 6 N2 
2 P4O6 + 12 H2O → 8 H3PO3 
8 H3PO3 → 2 PH3 + 6 H3PO4 

Then the overall reaction is: 
12 NH3 + ... → 2 PH3 + ... 

</span>

<span>So calculating for PH3:
<span>(1.10 g NH3) / (17.0306 g NH3/mol) x (2/12) x (33.9976 g PH3/mol) = 0.366 g PH3</span></span>

7 0
4 years ago
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