I think it’s d but don’t take my word for it
Answer is: 1/16 of the original mass remains unchanged after 10 years
Take 100 atoms:
After first half-life (2.5 years): 50% · 100 ÷ 100% = 50 or 1/2.
After second half-life (5 years): 0.5 · 50 = 25 or 1/4.
After third half-life (7.5 years): 0.5 · 25 = 12.5 or 1/8.
After fourth half-life (10 years): 0.5 · 12.5 = 6.25 or 1/16.
6.25 ÷ 100 · 100% = 6.25% or 1/16.
First convert the 590.0 grams of water to liters of water.
590.0 grams x (1 L / 1000 grams) = 0.59 L
Since we're dealing with concentration, recall this formula:
Molarity (M) = (moles of solute) / (liters of solution)
We know the Molarity and the Liters
0.82 M = (moles) / 0.59 L
To find the moles multiply 0.59 on both sides.
The result is 0.4838 moles of CaCl (the solute).
Then change moles into grams because the question wants grams.
In order to convert the moles of a substance to grams, you will need to multiply the mole value of the substance by its molar mass which is 110.986.
(0.4838 moles CaCl2) x (110.986 g CaCl)/ 1 mol CaCl2
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Oxygen is diatomic and nitrogen is not
Answer:
A protein is more stable in its native form, because apart of weak interactions between R groups, it also presents other stronger interactions, as those including covalent bonds
Explanation:
For example, covalent bonds between sulfur atoms when disulfide bridges are built. These links are very difficult to break and maintains the protein shape. Disulfide bonds are a few but they use to incide in the structure of native proteins