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
DerKrebs [107]
3 years ago
9

Can someone plz help I also mark braniliest!

Chemistry
1 answer:
NNADVOKAT [17]3 years ago
6 0

Answer:

D. The chemical formula

Explanation:

For example, in the compound KCl, we know that there are two elements present because you can see it in the chemical formula. We know that KCl consists of potassium and chloride ions.  

You might be interested in
A vessel of volume 22.4 dm3 contains 2.0 mol h2 and 1.0 mol n2 at 273.15 k initially. all the h2 reacted with sufficient n2 to f
yanalaym [24]
Volume = 22.4 dm3
n = 2 mol of H2
n = 1 mol of N2
Temperature = 273.15
All H2 reacts
reaction
N2 + 3H2 = 2NH3
1:3 ratio
Calculation:
N2 initial - N2 reacted = Final N2
1 - 2*(1/3) = 0.3333 mol of N2 left
H2 = 0 left
NH3 formed = 2/3*1 = 2/3 = 0.666
Total mol:
0.3333 + 0.666 = 1 mol
Apply the equation : 
PV = nRT
P = nRT/V = 1*0.0082*(273.15)/(22.4) = 0.0999924 atm
PH2 = 0
PN2 = 1/3*0.0999924 = 0.0333308 atm
PNH3 = 2/3*0.0999924 = 0.0666616 atm
Answer is 0.0666616 atm
7 0
3 years ago
Under constant temperature, the volume occupied by a gas varies inversely to the pressure applied. If the gas occupies a volume
solniwko [45]

Answer:

not sure, but you know what?

Explanation:

you are amazing! keep doing what youre doing!

7 0
3 years ago
Does Kinetic energy depend only on an object’s speed and velocity?
BaLLatris [955]

yes         .. . . . .. . . .. ....... . ..dlnv3r;'mw,c    kc;oqc,

xkdnnd                                                                                                

4 0
3 years ago
Read 2 more answers
what is the total displacement of a dog that runs north 80 meters to chase a ball, returns to its master, and runs south 20 mete
vladimir1956 [14]
The total displacement will be 20 meters.
7 0
3 years ago
Exam number: 007170RR
AleksandrR [38]

Answer:

A open

Explanation:

I am not sure but i think it is!

5 0
3 years ago
Other questions:
  • The ph of 0.255 m hcn is 4.95. What is the value of ka for hydrocyanic acid?
    13·1 answer
  • Explain why heating a contained gas that is held at a constant volume increases its pressure?
    9·1 answer
  • If you feed 100 kg of N2 gas and 100 kg of H2 gas into a<br> reactor. What is the limiting reactant?
    7·1 answer
  • Enough energy is added to matter in the liquid state, it will change into a different state.
    5·1 answer
  • Which of the following gases will escape through a hole in a balloon at the highest rate? Kr NO Ar N2O
    8·1 answer
  • a solution contains 4.5 times 10 to the negative 3 M HCI. Determine the hydroxide concentreation of the solution.
    9·1 answer
  • What happened when we made the predator(snake) population larger?
    8·1 answer
  • The only type of movement particles in a solid do is
    10·1 answer
  • Is krypton cation or anion?
    9·1 answer
  • Please answer ................
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!