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fredd [130]
3 years ago
11

P l e a s e help me omg I'm so confused-I'll give 40 points, I only have 45-

Chemistry
1 answer:
stiks02 [169]3 years ago
7 0
M is not as thick as N, It only takes 100°C to boil water whereas it takes 300°C to boil soybean oil
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Which of the following atoms typically
Vikentia [17]

Answer:

Good Question

see Negative ions are those which gain electrons to attain stability

Now, We know All metals tend to donate electrons which inturn results in positive charge

Now Have a closer look at options

a) F

It is fluorine

it's configuration is 2,7

that means it requires one electron to complete it's octet from 7 to 8

therefore, it will gain one electron which results in

{f }^{ - }

b)Li

lithium is metal having one electron in outermost shell So it will rather loose electron to attain stability

c)Ne

Neon is Noble gas which exists in neutral stare

d)S

Sulphur needs 2 more electrons to attain stability

therefore it exists as negative ion

e)Al

Aluminum is metal So it exists as positive ion

f)Be also exists as positive ion

3 0
3 years ago
Read 2 more answers
NaCl + H2SO4 ---&gt; Na2SO4 + HCl<br> Balance the double replacement chemical reaction.
vlada-n [284]

Answer:

2NaCl + H2SO4 ----> Na2SO4 + 2HCl

Explanation:

4 0
3 years ago
Read 2 more answers
Choose all the answers that apply. Which of the following has kinetic energy? rolling ball, moving car, book on a table, spinnin
Virty [35]
Spinning top, moving car, and rolling ball have kinetic energy I believe
5 0
3 years ago
A gas occupies a volume of 67.54 liters at 158°C and 4.87 atm pressure. Calculate the number of moles of this gas.
Katarina [22]

Answer:

The number of moles of the gas is 9.295 moles or 9.30 moles

Explanation:

We use PV = nRT

Where P = 4.87 atm;

V = 67.54 L

R= 0.0821Latm/molK

T = 158 C = 158 +273 K = 431 K

the number of moles can be obtained by substituting the values in the respective columns and solve for n

n = PV / RT

n = 4.87 * 67.54 / 0.0821 * 431

n = 328.9198 / 35.3851

n = 9.295moles

The number of moles is approximately 9.30moles.

6 0
3 years ago
The OH- ion concentration is greater than the H3o+ ion concentration in a water solution of
cupoosta [38]

Answer:

B) CH₃OH

Explanation:

7 0
3 years ago
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