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Andrej [43]
2 years ago
8

Please help me. It's urgent .

Chemistry
2 answers:
sesenic [268]2 years ago
8 0

Answer:

huh,wht a joke!!!!!!!!

CaHeK987 [17]2 years ago
3 0

Answer:

u also help me in my profile I don't know the answer please tell me please and I am not doing joke so u have to convert no in binary answer so tell me fast OK in comment on my question in my profile

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Li2SO4 + Cu(NO3)2 = 2LiNO3 + CuSO4. A.)If 1.31g of Li2SO4 reacts with 1.92g of Cu(NO3)2, calculate the theoretical yield (mass)
Len [333]

Answer:

Is this really middle school?  Im in middle school and this looks way beond what i would know, im so sorry if I am no help for this question  :(

5 0
3 years ago
Read 2 more answers
(b) How many moles of hydrogen are needed to make 30 moles of Fe?<br><br> PLEASE HELP ASAP
iVinArrow [24]

Answer:

1 mole of Fe is 55.85 g per mole

Explanation:

hope it helps

6 0
3 years ago
Which of the following causes the formation of ionic bonds
pantera1 [17]

Answer: b. One atom transferring electrons to another atom

Explanation: An ionic bond is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element and the element which accepts the electrons is known as electronegative element. This bond is formed between a metal and an non-metal.

Covalent bonds are formed by sharing of electrons between non metals

For example, In calcium iodide the one electron from calcium metal gets transferred to iodine atom and thus form an ionic bond to give CaI_2

Electronic configuration of calcium:

[Ca]=1s^22s^22p^63s^23p^64s^2

Calcium atom will lose two electron to gain noble gas configuration and form calcium cation with +2 charge.

[Ca^{2+}]=1s^22s^22p^63s^23p^6

Electronic configuration of iodine:

[I]=1s^22s^22p^63s^23p^64s^23d^{10}4p^5

Iodine atom will gain one electron to gain noble gas configuration and form iodide ion with -1 charge.

[I^-]=1s^22s^22p^63s^23p^64s^23d^{10}4p^6

7 0
3 years ago
Are you required toi sign up for medicare
zhannawk [14.2K]
Medicare enrollment begins 3 months before your 65th birthday. And you will be automatically enrolled Medicare<span> Parts A and B effective the month </span>you<span> turn 65.</span> Hope that helps you at least a bit ^^
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3 years ago
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Based on the table, which city was in danger of flooding?
dalvyx [7]

Answer:

I think the answer is Toledo

8 0
3 years ago
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