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
tino4ka555 [31]
3 years ago
12

Today, the annual rate of tectonic plate movement is observed and measured b

Chemistry
1 answer:
rodikova [14]3 years ago
4 0
Yes I think yesi,m not really suer
You might be interested in
An isotope has a half-life of 10 minutes. after 20 minutes, what percentage of the original nuclei remain?
Elena-2011 [213]
To solve this, we can use two equations.
t1/2 = ln 2 / λ = 0.693 / λ  
   
where, t1/2 is half-life and λ is the decay constant.

t1/2 = 10 min = 0.693 / λ

Hence, λ = 0.693 / 10 min              -         (1)

Nt = Nο e∧(-λt)    
                
Nt = amount of atoms at t =t time
Nο= initial amount of atoms
t = time taken

by rearranging the equation,
Nt/Nο = e∧(-λt)                  -  (2)

From (1) and (2),

Nt/Nο = e∧(-(0.693 / 10 min) x 20 min) 
Nt/Nο = 0.2500

Percentage of remaining nuclei = (nuclei at t time / initial nuclei) x 100%
                                                     
= (Nt/Nο ) x 100%
                                                      = 0.2500 x 100%
                                                      = 25.00%

Hence, Percentage of remaining nuclei is 25.00%
6 0
3 years ago
The blank
Alik [6]
I think it’s “number” and “type”
5 0
3 years ago
Why doesn't glue stick to the inside of the bottle? (Not sure if this is chemistry or not lol)
Leni [432]

Answer:

When white glue is in the bottle, there's not enough air inside the bottle to cause the water to evaporate to make the glue sticky. Basically, the bottle holds the glue from the air and keeps the glue from going everywhere.

8 0
2 years ago
PLEASE ANSWER THIS QUESTION FAST :(
kramer
Mol sulfuric acid = 19 g * (1 mol) / (98.1 g) = 0.19367 mol
mol H2O = 0.19367 mol H2SO4 * (2 H2O) / (1 H2SO4)
                = 0.387359 mol H2O
grams H2O = 0.387359 mol H2O * (18 g)/(1 mol)
                     = 6.97 g
The answer is 7.0 grams of water
6 0
3 years ago
Unbalanced forces can cause an object change its motion in three ways. What are they?
fenix001 [56]
Accelerate, decelerate, and changing directions.
4 0
3 years ago
Other questions:
  • A student is studying asbestos, a mineral that causes cancer in humans. One of the components of asbestos is silicon, a somewhat
    13·1 answer
  • If an atom has 29 electrons and a mass of 64, and it is neutral, what is the name of the atom?
    11·1 answer
  • The geological time scale is divided up and organized according to what life forms existed on earth.
    5·2 answers
  • What is the molariity of a 50.0 mL aqueous solution containing 10.0 grams of copper (II) sulfate, CuSO4?
    12·1 answer
  • PLZ HELP I WILL GIVE BRAINLIST ITS DUE IN AN HOUR
    8·1 answer
  • PLEASE HELP NEED ANSWER FAST
    5·1 answer
  • draw the skeletal structure of the alkyl halide that forms the following alkene as the only product in an elimination reaction.
    9·1 answer
  • Large compounds that are composed of many smaller molecular subunits, most notably biochemicals are referred to as.
    5·1 answer
  • Importancia de las disoluciones en la vida cotidiana
    10·1 answer
  • Given substances f2, kr, cl2 and hbr rank them with respect to the highest boiling point?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!