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
steposvetlana [31]
2 years ago
5

Which of the following isotopes is radioactive A)C-12 B)Pb-206 C) Tc-99 D)Ne-20

Chemistry
1 answer:
Gre4nikov [31]2 years ago
4 0
C) Tc-99 is a radioactive isotope also known as radioisoptope. 
You might be interested in
Why can’t there be a temperature lower than absolute zero
Firdavs [7]
Atoms cannot physically get more compact (temperature lowering increases the space between atoms) At absolute zero, the atoms are as physically close together as allowed by the physical laws governing it.
7 0
2 years ago
if you find that a substance turns litmus paper to blue and contains hydroxide ions what would it most lightly be
Delicious77 [7]
Acid if I remeber correctly
5 0
3 years ago
You push on the side of a toy truck rolling along the floor. What will happen to the motion of the truck?
sergeinik [125]

Answer:

The direction will be changed .

Explanation:

According to the principles of motion, if an object is moving with solitary velocity and if an external force is applied to it, then that force changes the position, speed, and direction of that object.

In the given question, an external force is being applied to the toy which will change the direction of that toy.

3 0
3 years ago
Why do we need to balance chemical equations?
Mrrafil [7]
So we know the number of moles of each compound. If we need to know the concentration we must know the number of moles that the compounds react with...

8 0
3 years ago
Read 2 more answers
What is the percent composition by mass of chlorine in LiCI
Lelechka [254]

Answer: Lithium (Li) 16.373%

Chlorine (Cl) 83.627%

Explanation:

6 0
2 years ago
Other questions:
  • Wich formula equation represents the burning of a sulfur to produce sulfur dioxide?
    13·1 answer
  • Is 4Na a molecule or an atom
    8·1 answer
  • Determine the pH of a 0.500 M HNO2 solution. Ka of HNO2 is 4.6 * 10-4.
    7·1 answer
  • What is the formal charge on each atom in sulfuric acid?
    11·1 answer
  • A 10.0g sample of H2O(l) at 23.0degrees C absorbs 209 joules of heat. What is the final temp of the H2O(l) sample? Explain.
    5·1 answer
  • What is the volume of a 3.00M(mol/L) solution made with 122g of LiF?
    7·1 answer
  • I need an answer asap <br> thank you all for your answers!<br> xoxo, anastasia
    10·1 answer
  • Which of the acyclic hydrocarbon series is represented by CnH2n​
    12·1 answer
  • 15. Mass = 25g<br> Start: 45mL<br> Final: 50mL<br> • What is the Volume?<br> • What is the Density?
    13·1 answer
  • In one to two sentences, identify the type of model shown and describe the atomic sructure of a molecule of water.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!