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
salantis [7]
3 years ago
15

if you have 1000g of radioactive waste with a half life of 50 million years what amount will you have left after 200 million yea

rs?
Chemistry
1 answer:
Lina20 [59]3 years ago
6 0
You will have 62.5 grams

1000g at 0 years
500g at 50mill
250g at 100mill
125g at 150 mil
62.5g at 200mill
You might be interested in
What are two examples of a chemical change
lyudmila [28]

Answer:

1.Cooking an egg

2. Burning wood

Hope it helps :)

6 0
3 years ago
Read 2 more answers
According to Archimedes' principle, the mass of a floating object equals the mass of the fluid displaced by the object. A 150-lb
julsineya [31]

Answer:

The density of the swimmer is 0.0342 lbm/in3.

This value makes sense as the density of the body is very similar to the water.

Explanation:

If the swimmers is floating, the weight of the swimmer must be equal to the upward buoyant force.

We can express the weight force as the product of density and volume of the swimmer.

Then

\rho_{swimmer}*V_{swimmer}=\rho_{water}*V_{water_displaced}\\\\\rho_{swimmer}*V_{swimmer}=\rho_{water}*0.95**V_{swimmer}\\\\\rho_{swimmer}=0.95*\rho_{water}\\\\\rho_{swimmer}=0.95*0.036 lbm/in3\\\\\rho_{swimmer}=0.0342lbm/in3

It makes sense as the density of the body is very similar to the water.

5 0
3 years ago
Which reaction would cause an increase in entropy? A. SO2Cl2(g) SO2(g) + Cl2(g) B. PCl3(g) + Cl2(g) PCl5(g) C. 2CO(g) + O2(g) 2C
IrinaVladis [17]
A. SO2Cl2(g) --> SO2(g) + Cl2(g) 
<span>1 mole of SOCl2 becomes 1 mole SO2 and 1 mole Cl2 </span>
<span>1 mole --> 2 moles </span>
<span>entropy increases </span>

8 0
3 years ago
Read 2 more answers
The book procedure calls for 2,5-dimethylhexane-2,5-diol and concentrated hydrochloric acid to be shaken in a reaction vial. Whi
san4es73 [151]

Answer:

E) All of the above.

Explanation:

Hello,

Since the acidic nature of the HCl implies its corrosiveness, when it is in contact with the skin and eyes the burning starts immediately, so gloves and goggles must be worn. Next, the fuming hydrochloric acid (37% by mass) is volatile so it gives off even when dissolved into water, so it must be used in the fume hood. Then, since vapors are produced during the chemical reaction, an overpressure could be attained, that's why we must keep the glass sash of the fume hood between us and the vial. As a common risk, the vial could be dropped causing the hydrochloric acid to splash, so we must keep the vial well inside the hood.

Best regards.

7 0
3 years ago
What items are true about a block of ice at -10°C as you continue to apply heat
zhenek [66]

1. its temperature will rise continuously until it melts

I don't believe that any of the other answers are correct because it can not stay at a certain temperature if it is melting

5 0
3 years ago
Other questions:
  • The chemical equation shows how ammonia reacts with sulfuric acid to produce ammonium sulfate. 2NH3(aq) + H2SO4(aq) (NH4)2SO4(aq
    12·1 answer
  • What is the melting point and boiling point of Gold in Celsius and what is the # of protons and Neutrons of it oh and the number
    14·1 answer
  • If you had 100 ml of juice how many milliters would be fruit juice
    7·1 answer
  • What state of matter can be compressed?
    11·2 answers
  • How many carbon atoms are present in a mole of 12c??
    5·1 answer
  • ICl has a higher boiling point than Br2. What is the best explanation for this?
    14·2 answers
  • How many grams are 5.83 moles of C2H2
    9·1 answer
  • What are 2 reasons molecules cannot pass easily through the cell membrane? What part of the cell membrane helps them get through
    14·1 answer
  • Balance the following reaction. A coefficient of "1" is understood. Choose the option "blank" for the correct answer if the coef
    12·2 answers
  • How do I convert the ones circled in red? Please explain how you did it don’t just do it for me.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!