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
Elina [12.6K]
2 years ago
8

2a Define Radioactivity?​

Chemistry
2 answers:
Luda [366]2 years ago
8 0

Answer:

The emmision of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei

or

the giving off of rays of energy or particles by the breaking apart of atoms of certain elements

Gwar [14]2 years ago
7 0
Jekskowkqoanwknwkwnwownsksnsk
You might be interested in
what can we tell about an unknown substance based on its properties. Its science btw, i couldnt find the science subject
dsp73

Answer:

Measuring its density and comparing your result to a list of known densities, or other properties that give you useful info

Explanation:

You can use observations about substances to form a hypothesis about the substance by comparing it to others. Ex: if something is magnetic it must be made of one or more of the elements iron, cobalt, or nickel.

6 0
2 years ago
A molecule of acetone and a molecule of propyl aldehyde are both made from 3 carbon atoms, 6 hydrogen atoms, and 1 oxygen atom.
TEA [102]

Explanation:

The structures of both acetone and propanal are shown below:

In the formula of propanal there is -CHO functional group at the end.

In acetone -CO- group is present in the middle that is on the second carbon.

The molecular formula is C3H6O.

Both have same molecular formula but different structural formulas.

7 0
2 years ago
Who proposed the "Law of Octaves" for organizing events?
djyliett [7]

b

Explanation:

February 7, 1863, was the day John Newlands published a paper outlining what would be known as “The Law of Octaves”. Newlands discovered if he ordered the known elements by increasing atomic weight, the chemical properties of the elements would be similar for every eighth group

5 0
3 years ago
What was the event that triggered Nicole’s deterioration
inn [45]

Answer: A severe viral respiratory infection

8 0
3 years ago
Read 2 more answers
if the waste you have contains 100.0 grams of silver nitrate, how many mols of silver nitrate is this? (Use the molar mass of th
hammer [34]

The number of moles is simply calculated by taking the ratio of mass over the molar mass. The molar mass of silver nitrate AgNO3 is 169.87 g/mol. Therefore:

number of moles AgNO3 = 100 g / (169.87 g/mol)

number of moles AgNO3 = 0.59 moles

3 0
3 years ago
Other questions:
  • Why is nucleus configured the brain of the cell
    11·1 answer
  • A 346.9 ml sample of carbon dioxide was heated to 381 k. if the volume of the carbon dioxide sample at 381 k is 596.2 ml, what w
    11·1 answer
  • what is the amount of electrical energy utilized in moving the electrons from one terminal point in a battery called
    13·1 answer
  • hydrogen gas and oxygen gas react to form liquid hydrogen peroxide. which starement is true about the reaction?
    12·1 answer
  • In 2005, a Nevada silver mine exported 200 tons of silver. In 2008, as the silver supply became exhausted, it only exported 25 t
    10·2 answers
  • The majority of the elements in the Periodic Table are
    7·2 answers
  • If the temperature of the helium balloon were increased from 30°C to 35°C and the volume of the balloon only expanded from 0.47L
    11·1 answer
  • In order to dry wet clothes, we spread them on a clothline. This is because (i) spreading increases surface area (ii) clothes be
    5·1 answer
  • The table shows characteristics of two plants, Plant A and Plant B.
    8·1 answer
  • 15<br> Question 56 (1 point)<br> What is the name of the compound with the chemical formula SnSnO3?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!