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
ELEN [110]
3 years ago
5

What is radioactivity.

Chemistry
1 answer:
Serggg [28]3 years ago
5 0
Radioactivity another name for radioactive decay. Radioactivity refers to particles emitted from nuclei as a result of nuclear instability. 
You might be interested in
2. What is the name of the compound AIPO?
Andru [333]

Answer:

Aluminum phosphate

Explanation:

7 0
2 years ago
How many moles of water are produced when 3.0 moles of hydrogen gas react with 1.8 moles of oxygen gas?
swat32

Sorry for the late response but for this question, the answer is 3 moles of water.

8 0
3 years ago
What is the concentration (in M) of a sample of the unknown dye with an absorbance of 0.25 at 542 nm?
Sladkaya [172]

Answer:

see explanation below

Explanation:

Question is incomplete, so in picture 1, you have a sample of this question with the missing data.

Now, in general terms, the absorbance of a substance can be calculated using the beer's law which is the following:

A = εlc

Where:

ε: molar absortivity

l: distance of the light in solution

c: concentration of solution

However, in this case, we have a plot line and a equation for this plot, so all we have to do is replace the given data into the equation and solve for x, which is the concentration.

the equation according to the plot is:

A = 15200c - 0.018

So solving for C for an absorbance of 0.25 is:

0.25 = 15200c - 0.018

0.25 + 0.018 = 15200c

0.268 = 15200c

c = 0.268/15200

c = 1.76x10⁻⁵ M

5 0
3 years ago
Pls help!!!!!
erica [24]

Answer:

moving i think! Hope this helps

Explanation:

3 0
3 years ago
Read 2 more answers
When most fuels burn, water and carbon dioxide are the two main products. Why can´t you say that water and carbon dioxide are pr
STatiana [176]
That is only the combustion of a hydrocarbon. Rust is a combustion reaction because oxygen is added.

Fe(s) + O2(g) => FeO2(s)
7 0
3 years ago
Read 2 more answers
Other questions:
  • The atomic number of sulfur is 16, which indicates that a sulfur atom contains
    7·1 answer
  • For the equilibrium
    10·1 answer
  • Learn how changes in binding free energy affect binding and the ratio of unbound and bound molecules.
    13·1 answer
  • Enter your answer in the provided box. an aqueous solution containing 10 g of an optically pure substance was diluted to 500 ml
    15·1 answer
  • Select the correct answer from each drop-down menu. Complete the sentences to explain how the oceans on Earth were formed. Water
    15·1 answer
  • HURRY PLS IT'S TIMED
    14·2 answers
  • What is the maximum number of electrons that an S orbital can have?
    15·2 answers
  • Please help (: What are the sources and stages of a river ?
    15·2 answers
  • Which statement explains why H2O has a
    12·1 answer
  • Elemental Li and Na are prepared by electrolysis of a molten salt, whereas K, Rb, and Cs are prepared by chemical reduction.(c)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!