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
Liula [17]
3 years ago
6

What has56 protons and 54 electrons and 74 neutrons

Chemistry
2 answers:
Neko [114]3 years ago
7 0

Answer:

This is isotope of barium

Explanation:

It has atomic number of 56, mass number is 130 (56 + protons + 76 neutrons) oxidation number is +2 it has two more protons than electrons ( 56 - 54 = 2 )

meriva3 years ago
5 0
The answer is
Barium it’s atomic number is 56 and the atomic symbol is Ba
You might be interested in
How are quantum numbers related to atomic orbitals?
sdas [7]
When considering atomic orbitals the only important information they really wanted to know is the size of the orbit, which was described by using quantum numbers.
3 0
3 years ago
Use the reaction given below to solve the problem that follows: Calculate the mass in grams of aluminum oxide produced by the re
bearhunter [10]

Answer:  28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}   

\text{Moles of} Al=\frac{15.0g}{27g/mol}=0.556moles

The balanced chemical equuation is:

4Al+3O_2\rightarrow 2Al_2O_3  

According to stoichiometry :

4 moles of Al produce == 2 moles of Al_2O_3

Thus 0.556 moles of Al will produce=\frac{2}{4}\times 0.556=0.278moles  of Al_2O_3

Mass of Al_2O_3=moles\times {\text {Molar mass}}=0.278moles\times 102g/mol=28.4g

Thus 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal.

7 0
3 years ago
Why to you do that this app doesn’t tell me anything
ziro4ka [17]
Same here no one answers my questionssssss
4 0
3 years ago
Read 2 more answers
Which term refers to a universal fact sometimes based on mathematical equations?
V125BC [204]
<span>The answer is scientific law. This continuously relates in the same circumstances, and suggests that there is a fundamental association connecting its elements. Truthful and well-confirmed statements like "Mercury is liquid at STP" are measured too exact to be suitable as scientific laws. </span>
6 0
4 years ago
The distance from the top of one sound wave to the top of the next sound wave is called a (n)
Vikki [24]

Answer:

The   answer is wavelength

Explanation:

8 0
3 years ago
Other questions:
  • Which statement best describes chemical properties of matter? Chemical properties, such as density, must be observed when a subs
    5·2 answers
  • Arrange the colors of visible light, green, red, and blue, in order of increasing wavelength.
    5·1 answer
  • What emotional state is important to maintain while reporting an accident in the lab?
    5·2 answers
  • The value of the solubility product constant for Ag2CO3 is 8.5 × 10‒12 and that of Ag2CrO4 is 1.1 × 10‒12. From this data, what
    14·1 answer
  • What is the ph of a solution that is 0.50 m in propanoic acid and 0.40 m in sodium propanoate. (ka for propanoic acid = 1.3 x 10
    12·1 answer
  • The surface temperatures on land vary more over the course of a year than the surface temperatures on the ocean because land has
    9·1 answer
  • Is a straight chain, a linear chain and an unbranched chain the same thing?
    14·2 answers
  • Write a nuclear equation for the beta decay of Promethium-165
    14·1 answer
  • Ethane is a hydrocarbon with a formula of C2H6 . How many Carbon and Hydrogen atoms are contained within 3 molecules of ethane ?
    13·1 answer
  • How does the muscular system depend on the skeletal system
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!