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IgorLugansk [536]

3 years ago

12

Calculate the atomic mass of c 13

1 answer:

Fiesta28 [93]3 years ago

3 0

Step-by-step explanation:

12C is listed as having a fractional abundance of 0.989 (or a percent abundance of 98.9%) and an atomic weight of 12.000000 u (u represents atomic mass units). 13C is listed as having a fractional abundance of 0.011 (or a percent abundance of 1.1%) and an atomic weight of 13.003355 u

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4 years ago

Read 2 more answers

You flip a coin and then roll a 6-sided number cube (a die).

expeople1 [14]

Answer:

a) No, it does not matter whether you roll the die or flip the coin first, as these two events are <u>independent</u> of each other, which means they do not affect each other.

b) Yes.

Let event 1 be flipping a coin and event 2 be rolling a die.
Let event 1 be rolling a die and event 2 be flipping a coin.

The likelihood that any outcome will occur will not change, as the events are independent.

c) see attached

d) 12 outcomes (H = head, T = tail, numbers represent the value of the die)

H 1 T 1

H 2 T 2

H 3 T 3

H 4 T 4

H 5 T 5

H 6 T 6

e)

$\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}$

$\implies \sf P(even)=\dfrac{1}{6}+\dfrac{1}{6}+\dfrac{1}{6}=\dfrac{3}{6}=\dfrac{1}{2}$

$\implies \sf P(head)=\dfrac{1}{2}$

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Step-by-step explanation:

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Since the right parts of the equation are equal, therefore the left parts of the equation are also equal:

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Divide both parts of the equation by 2:

$y=x\\Hence,\\4x-3x=6\\x=6\\Thus,\\x=y=6$

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lapo4ka [179]

Answer:

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Step-by-step explanation:

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