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
lions [1.4K]
3 years ago
9

Which data table below correctly describes the parts of an atom?

Chemistry
1 answer:
zheka24 [161]3 years ago
6 0

Answer: It's the first one :3

Explanation:

You might be interested in
Easy ways to understand ionic formulae?
NemiM [27]
Https://superhumanacademy.com/how-to-memorize-polyatomic-ions-chemical-formulas/

This is how I memorized the ionic formulae. It is a lot to remember, so it does take some time and studying. But this website helped me learn it fast and in a suuuper unique way. I learned it 3 years ago and could still name quite a bit of them. Hope this helps!!!
3 0
3 years ago
What is metaphase <br> HELEPWOAUSJSKQJDHEHR
IrinaVladis [17]

Answer:

the second stage of cell division. its between prophase and anaphase during the chromosomes become attached to spindle fibers.

5 0
3 years ago
What is the volume of a 28g object that has a physical property of .45g / m * L ?
sammy [17]

Answer:

12.6 grams

Explanation:

this is filler so I can send the answer and also can I get brainliness

6 0
2 years ago
Pleaseeee helpppppppp
Minchanka [31]

Answer:

C. The third option

Explanation:

7 0
3 years ago
A sample contains 25% parent isotope and 75% daughter isotopes. If the half-life of the parent isotope is 72 years, how old is t
alisha [4.7K]

The radioactive decay obeys first order kinetics

the rate law expression for radioactive decay is

ln\frac{[A_{0}]}{[A_{t}]}=kt

Where

A0 = initial concentration

At = concentration after time "t"

t = time

k = rate constant

For first order reaction the relation between rate constant and half life is:

k=\frac{0.693}{t_{\frac{1}{2} } }

Let us calculate k

k = 0.693 / 72 = 0.009625 years⁻¹

Given

At = 0.25 A0

ln(\frac{A0}{0.25A0})=0.009625  X time

time = 144 years

So after 144 years the sample contains 25% parent isotope and 75% daughter isotopes**

Simply two half lives

5 0
3 years ago
Read 2 more answers
Other questions:
  • The acid-dissociation constant, Ka, for benzoic acid is 6.5 × 10-5.
    14·2 answers
  • An understanding of periodic trends is important because the trends 1. can be used to convert non-useful elements to useful ones
    7·1 answer
  • A chemistry student weighs out 0.154 g of chloroacetic acid (HCH2CICO2) into a 250. mL volumetric flask and dilutes to the mark
    9·1 answer
  • How is the name of each element in the periodic table represented?
    14·2 answers
  • Identify each type of titration curve. note that the analyte is stated first, followed by the titrant.
    14·1 answer
  • Which of the following is classified as a ionic compound
    8·1 answer
  • What is a double displacement reaction?
    5·1 answer
  • if 26.8g of copper (ll) chloride are dissolved in sufficient water to make 4.00 L of solution, what is the molarity of the solut
    5·1 answer
  • Electron orbitals or shells are also called and abbreviated as?​
    10·1 answer
  • Describe a method to investigate the effect
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!