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Alex
3 years ago
8

Help and ill love you forever

Chemistry
1 answer:
aev [14]3 years ago
8 0

Answer:

11 N to the right

Explanation:

the net force would be 24 N - 13 N, which is 11 N. Since 24 is the larger number, it will go in the direction of the 24 force

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Radioactive cobalt-60 is frequently used in treating cancer. It took 24 years for a 10 gram sample to decay to 0.625 grams. What
-BARSIC- [3]

Answer:

Half life is 6 years.

Explanation:

T½ = In2 / λ

Where λ = decay constant.

But N = No * e^-λt

Where N = final mass after a certain period of time

No = initial mass

T = time

N = 0.625g

No = 10g

t = 24 years

N = No* e^-λt

N / No = e^-λt

λ = -( 1 / t) In N / No (inverse of e is In. Check logarithmic rules)

λ = -(1 / 24) * In (0.625/10)

λ = -0.04167 * In(0.0625)

λ = -0.04167 * (-2.77)

λ = 0.1154

T½ = In2 / λ

T½ = 0.693 / 0.1154

T½ = 6.00 years.

The half life of radioactive cobalt-60 is 6 years

5 0
2 years ago
In a chemical reaction, which are the most likely products of these reactants 4Fe+302
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3 years ago
. Never start a job without knowing the ___________ and ______________ of the chemicals you are working with.
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A solution is made by mixing 34.5 g of sugar with 75.0 g of water. What is the mass percent of sugar in this solution?
lubasha [3.4K]

the mass percent of sugar in this solution is 46%.

Answer:

Solution given:

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=\bold{\frac{34.5}{75.0}*100\%=46\%}

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