To cause death within hours of exposure to radiation, the dose needs to be very high, 10Gy or higher, while 4-5Gy will kill within 60 days, and less than 1.5-2Gy will not be lethal in the short term. However all doses, no matter how small, carry a finite risk of cancer and other diseases. Patients exposed to radiation between 8 to 30 Gy experience nausea and severe diarrhea within an hour, and they die between 2 days and 2 weeks after exposure. Absorbed doses greater than 30 Gy cause neurological damage
Answer:
By filtration
Explanation:
In the container, pour water and shake the mixture very well.
Pour the mixture in a clean container thro<u>ugh</u> a <em><u>filt</u></em><em><u>er</u></em><em><u> </u></em><em><u>tunnel</u></em> and steel with be the residue and aluminium will be in water.
Add dilute Ammonia solution to the filtrate to precipitate it and burn until aluminium solid is obtained.
Answer:
% of mass of electrons in C = 0.0272
Explanation:
Atomic no. of carbon = 6
So, no. of electron = 6
Mass of an electron = 
Mass of 6 electrons = 
Mass of C = 12.0107 u
% of mass of electrons in C = 
% of mass of electrons in C = 
Answer:
Approximately 2000 J.
General Formulas and Concepts:
<u>Thermodynamics</u>
Specific Heat Formula: q = mcΔT
- <em>q</em> is heat (in J)
- <em>m</em> is mass (in g)
- <em>c</em> is specific heat (in J/g °C)
- ΔT is change in temperature (in °C or K)
Explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
[Given] <em>c</em> = 0.897 J/g °C
[Given] <em>m</em> = 79 g
[Given] ΔT = 28°C
[Solve] <em>q</em>
<em />
<u>Step 2: Solve for </u><em><u>q</u></em>
- Substitute in variables [Specific Heat Formula]: q = (79 g)(0.897 J/g °C)(28 °C)
- Multiply [Cancel out units]: q = (70.863 J/°C)(28 °C)
- Multiply [Cancel out units]: q = 1984.16 J
<u>Step 3: Check</u>
<em>Follow sig fig rules and round. We are given 2 sig figs as our lowest.</em>
1984.16 J ≈ 2000 J
