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
ludmilkaskok [199]
2 years ago
7

How many atoms of each element are chemical formula: 3K2O3.

Chemistry
2 answers:
hammer [34]2 years ago
4 0

Answer:

In 3K2O3 - 6 K atoms, 9 O atoms

In 2H3NCH3Br - 12 H atoms, 2 N atoms, 2 C atoms, 2 Br atoms

In 4 Ar2CO3 - 8 Ar atoms, 4 C atoms, 12 O atoms

Explanation:

All you need to do is multiply the coefficient by the number of each atom in the compound. For example, H3NCH3Br has 1 nitrogen, 1 carbon, 1 bromine, and 6 hydrogens. If you have 2H3NCH3Br, just multiply all those numbers by 2.

aksik [14]2 years ago
4 0
3k2o3 = 15

2h3nch3br = 17

4ar2co3 = 24
You might be interested in
When HBr is added to pure water, HBr molecules lose protons, while water molecules gain protons. In this reaction, HBr is a(n)
Stells [14]
Acid Sorry if I am wrong but I am pretty positive it’s acid
3 0
2 years ago
What is not matter in chemistry?? ​
Igoryamba

Answer:

중요하지 않은 것들의 예로는 생각, 감정, 빛, 에너지가 있습니다. ... 에너지 : 빛, 열, 운동 및 위치 에너지, 소리는 질량이 없기 때문에 물질이 아닙니다. 사물

Explanation:

Energy: Light, heat, kinetic and potential energy, and sound are non-matter because they are massless. Objects that have mass and are matter may emit energy.

5 0
2 years ago
Read 2 more answers
The sum of the protons and neutrons in the nucleus of an atom is called the _____?
True [87]
The sun of the protons a D neutrons in the nucleus of an atom is called the ATOMIC MASS
4 0
2 years ago
What are silicates? what are silicates? silicates are extended arrays of silicon and nitrogen. they are the most common network
Georgia [21]
The answer is b I think
3 0
3 years ago
Read 2 more answers
Identify the oxidizing and reducing agents in the following: H2S(aq) + Cl2(g) -> S(s) + 2HCI (aq)
alexgriva [62]

The oxidizing and reducing agent in the above redox reaction are hydrogen sulphide (H2S) and Chlorine (Cl) respectively.

<h3>What is an oxidizing and reducing agent?</h3>

An oxidizing agent is any substance that oxidizes, or receives electrons from another substance and as a result, becoming reduced.

On the other hand, a reducing agent is any substance that reduces or donates electrons to another and as a result becomes oxidized.

According to this reaction; H2S(aq) + Cl2(g) -> S(s) + 2HCI (aq)

  • H2S accepts electrons from Cl2 and becomes reduced to S
  • Cl2 donates electrons to H2S and becomes oxidized to HCl

Therefore, the oxidizing and reducing agent in the above redox reaction are hydrogen sulphide (H2S) and Chlorine (Cl) respectively.

Learn more about oxidizing agent at: brainly.com/question/10547418

#SPJ1

8 0
1 year ago
Other questions:
  • 8.00ml of 1.25M lithiukm hydroxide is reacted with sulfuric acid. It is found that 52.87mL of the sulfuric acid is required to c
    10·1 answer
  • How many neutrons exist in the isotope sodium-23?
    8·2 answers
  • How do I do this<br> I need answers fast
    13·1 answer
  • Calculate in gramm the mass of 0.1 mole of hydrochloric acid(h=1 ,cl=35.5)​
    8·1 answer
  • develop a hypothesis to explain why the radiation from the 14C source could be shielded more effectively than the radiation from
    14·1 answer
  • What is the number of C moles in 1.20*10²⁴ atoms of C
    12·1 answer
  • Please Help -<br> Complete the table
    9·1 answer
  • An arson investigator is called to a suspicious fire that destroyed a house. The arson
    9·1 answer
  • How many atoms are there in 7.80 moles of germanium
    7·1 answer
  • 1. Pollutants are very unstable molecules. Do you think N, and O2 are
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!