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
k0ka [10]
3 years ago
13

Which of the following describes an atom?

Chemistry
1 answer:
vredina [299]3 years ago
7 0

Answer:

Correct answer is option (3) .

Explanation:

Hope it helpful....

You might be interested in
If the volume of an irregular sound is determined by the water displacement technique, its volume will be equal to
dolphi86 [110]
25 mL
i could be wrong but hope it helps
3 0
2 years ago
How many moles are in 525 g of ammonia, NH3?<br> 8940.75 M<br> 0.03 M<br> 30.83 M
victus00 [196]

Answer:

30.83 M

Explanation:

17.03052 re in one mole. So, if you multiply it by 30.83, you will get 535 g of ammonia.

In fact, the detailed answer is 30.827009392549122.

3 0
2 years ago
Read 2 more answers
The electrolysis of water forms H2 and O2. 2H2O Right arrow. 2H2 O2 What is the percent yield of O2 if 10.2 g of O2 is produced
Mama L [17]

Answer:

67.5%

Explanation:

Step 1: Write the balanced equation for the electrolysis of water

2 H₂O ⇒ 2 H₂ + O₂

Step 2: Calculate the theoretical yield of O₂ from 17.0 g of H₂O

According to the balanced equation, the mass ratio of H₂O to O₂ is 36.04:32.00.

17.0 g H₂O × 32.00 g O₂/36.04 g H₂O = 15.1 g O₂

Step 3: Calculate the percent yield of O₂

Given the experimental yield of O₂ is 10.2 g, we can calculate its percent yield using the following expression.

%yield = (exp yield / theoret yield) × 100%

%yield = (10.2 g / 15.1 g) × 100% = 67.5%

8 0
2 years ago
When NH3(aq) is added to Cu2 (aq), a precipitate initially forms. Its formula is:
Rasek [7]
It’s B the cu looses its 2 and passes it to the NH3 that needs a bracket to separate them. The NH3 doesn’t loose its 3 because it’s already a compound!
Hope this helps!
3 0
3 years ago
What is true about an atom in an excited state? Select all that apply:
AnnyKZ [126]

Explanation:

What is true about an atom in an excited state? Select all that apply:

A. It is less likely to enter chemical reactions.

B. It is more likely to enter chemical reactions.

C. It has less energy than a ground state atom.

D. It has more energy than a ground state atom.

4 0
2 years ago
Other questions:
  • How much water will be required to dissolve 0.3g of benzoic acid at 95oC given that the solubility of BA at 95oC is 68.0g/L?
    10·1 answer
  • Which of the following mixture types is characterized by the settling of particles
    5·2 answers
  • Differences between iron and steel
    12·1 answer
  • When Mrs. Green describes the physical properties of matter she said that physical properties often concern changes in state. On
    5·1 answer
  • Which of the following statements describes mass defect?
    10·2 answers
  • Ammonia is produced by the Haber process, in which nitrogen and hydrogen are reacted directly using an iron mesh impregnated wit
    9·1 answer
  • Which is an example of flow of heat through conduction
    11·1 answer
  • 1. Describe the 3 rules that govern the building of an electron configuration. Provide an example that
    5·1 answer
  • Professionals in a scientific laboratory and in the healthcare field need to accurately prepare solutions for a number of reason
    10·1 answer
  • How many moles of Mg are present in 62.23 grams of Mg? (Show your calculations for full credit.)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!