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
Aloiza [94]
3 years ago
8

How many molds of atoms are there in each compound ? 1. Al2S3 2. NaNO3 3. Ba(OH)2

Chemistry
1 answer:
Snezhnost [94]3 years ago
6 0
1) 2 mol of Al; 3 mol of S

2) 1 mol Na; 1 mol N; 3 mol O

3) 1 mol Ba; 2 mol O; 2 mol H
You might be interested in
Calculate the ratio of effusion rates of cl2 to f2 .
WINSTONCH [101]
<span>Answer: Graham's law of gaseous effusion states that the rate of effusion goes by the inverse root of the gas' molar mass. râšM = constant Therefore for two gases the ratio rates is given by: r1 / r2 = âš(M2 / M1) For Cl2 and F2: r(Cl2) / r(F2) = âš{(37.9968)/(70.906)} = 0.732 (to 3.s.f.)</span>
6 0
3 years ago
The Bohr model of the atom explained why emission spectra are discrete. It could also be used to explain the photoelectric effec
muminat
<span>d)Electrons need specific amounts of energy to "jump" off an atom and be emitted.</span>
8 0
3 years ago
Read 2 more answers
What happens when a chemical is determined to be dangerous?
Vlada [557]

Answer:

b

Explanation:

8 0
3 years ago
What is national flower of nepal?
Vanyuwa [196]

Answer:

national flower : Rhododendron

national animal : cow

national bird : Himalayan Monal

4 0
3 years ago
When electrolyzing copper (ll) chloride, what reaction takes place at the anode? What reaction takes place at the cathode?
klemol [59]

Answer:

Copper ions are reduced into copper atoms.

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

Explanation:

During electrolysis,  the positive H⁺ and Cu⁺ ions move to the negative cathode and negative OH⁻ and Cl⁻ ions move to the positive anode.

At cathode, copper ions are preferentially discharged due to the low electromotive force required to discharge them compared to the hydrogen ion. The copper ions gain the two electrons lost by the chloride ions when the are discharged. (2 Cl⁻₍aq₎ → Cl₂₍g₎ + 2e⁻)

Thus the half equation is as follows:

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

5 0
3 years ago
Other questions:
  • At what temperature is a gas likely to have the lowest rate of diffusion? 15° 21° 24° 30°
    7·2 answers
  • Don't know if this is for sure Chemistry but they didn't have just plain science
    13·1 answer
  • Compared to a solid, the molecular bonds of a liquid are.
    12·2 answers
  • If you have exactly 2.00 moles each, of two different substances, then which of the following must be true about the two samples
    10·1 answer
  • What do the coefficients in the following balanced chemical equation mean?<br><br> 2H2 + O2 → 2H2O
    7·1 answer
  • What is the overall net charge of an ionic compound?<br> O 1- <br> O 1+<br> O 2-<br> O 0​
    10·1 answer
  • Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass?
    5·1 answer
  • Number 5 plsssssssss
    12·1 answer
  • How would you prepare 250 mL of a 0.100 M solution of fluoride ions<br> from solid CaF2?
    12·1 answer
  • SOMEONE HELP ME ANSWER FOSSIL RECORD PLS I DONT KNOW THE ANSWER I NEED TO KNOW ASAP
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!