1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Strike441 [17]
4 years ago
13

Help plzz I forgot to post the picture for #2 so..

Chemistry
1 answer:
joja [24]4 years ago
7 0
I would say your answer is C

Sorry if its wrong
You might be interested in
Which ionic compound would you expect to have the highest melting point? a. Al-N b. Fe-O C. W-C
Elza [17]

Answer:

b. Fe-O

Explanation:

A way to predict melting points for ionic compounds is with electronegativity.

Electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

The most electronegativity difference (E.D.), the highest melting point, thus:

E.D. Al-N = 3,0 - 1,6 = <em>1,4</em>

E.D. Fe-O = 3,5 - 1,8 = <em>1,7</em>

E.D. W-C = 2,5 - 1,7 = <em>0,8</em>

The most electronegativity difference is from Fe-O, thus, this ionic compound will have the highest melting point.

I hope it helps!

8 0
4 years ago
I WILL GIVE BRAINLEST PLS HELP
Gekata [30.6K]

Answer:I need it

Explanation: I have the same quision in my chemistry exam but i dont have the answer

3 0
3 years ago
Read 2 more answers
Calculate the mass of 0.750 mol of the following substance. Na3PO4.
Nookie1986 [14]
Na3 = 23*3 = 69
P = 31
O4 = 16*4 =64
69+ 31+ 64 = 164g/mol
0.75mol = 0.75 * 164 = 123 g
4 0
3 years ago
What is the difference of how fast the particles move in the<br> different states of matter?
Readme [11.4K]
May i ask you what lesson this is ?
5 0
3 years ago
1.12g H2 is allowed to react with 9.60 g N2, producing 1.23 g NH3.
andriy [413]

Answer:

A. m_{NH_3}^{theo} =1.50gNH_3

B. Y=82.2\%

Explanation:

Hello!

In this case, since the undergoing chemical reaction between nitrogen and hydrogen is:

N_2+3H_2\rightarrow 2NH_3

Thus we proceed as follows:

A. Here, we first need to compute the moles of ammonia yielded by each reactant, in order to identify the limiting one:

n_{NH_3}^{by \ H_2}=1.12gH_2*\frac{1molH_2}{2.02gH_2}*\frac{2molNH_3}{3molH_2}=0.370molNH_3\\\\  n_{NH_3}^{by \ N_2}=1.23gN_2*\frac{1molN_2}{28.02gN_2}*\frac{2molNH_3}{1molN_2}=0.0878molNH_3

Thus, since nitrogen yields the fewest moles of ammonia, we realize it is the limiting reactant, so the theoretical yield, in grams, of ammonia is:

m_{NH_3}^{theo}=0.0878mol*\frac{17.04gNH_3}{1molNH_3} =1.50gNH_3

B. Finally, since the actual yield of ammonia is 1.23, the percent yield turns out:

Y=\frac{1.23gNH_3}{1.50gNH_3} *100\%\\\\Y=82.2\%

Best regards!

5 0
3 years ago
Other questions:
  • Elemental mercury was first discovered when a mercury oxide
    10·1 answer
  • What element is oxidized in the following reaction? Zn + CuSO4 yields ZnSO4 + Cu
    5·2 answers
  • Hey can someone pls help me ASAP thanks!!! ​
    12·1 answer
  • According to the Lewis dot structure shown here how may valence electrons does chlorine have
    14·1 answer
  • While performing a recrystallization, a chemist notices that a small amount of the sample will not dissolve, even after the recr
    8·1 answer
  • What will be the number of atoms in 0.750 gram of Fe
    8·1 answer
  • 1. The two qualities used to describe winds are________ and speed. 2. a local wing that blows during the day from an ocean towar
    14·1 answer
  • Suppose of potassium bromide is dissolved in of a aqueous solution of silver nitrate. Calculate the final molarity of potassium
    13·1 answer
  • Identify NaOH (aq) + HNO3(aq) → NaNO3(aq) + H2O(1)
    5·1 answer
  • Which of the following changes would result in an increase of nitrogen dioxide, NO2?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!