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asambeis [7]
2 years ago
13

It’s major Orion and andromeda are fixed groups of stars called?

Chemistry
1 answer:
Ymorist [56]2 years ago
3 0

Answer: They are called constellations.

Explanation:

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Example of oxidizing agents include
Ivahew [28]

Explanation:

Substances generally tends to specialize as either oxidizing or reducing agents.

An oxidizing agent is an electron acceptor which causes a co-reactant to be oxidized in a reaction.

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   Non-metals especially oxygen and the halogens.

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Help with this question I don’t get it I will give out 30 points!!!
mina [271]
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3 years ago
If you start with 1.000 gram sample of the isotope how much time would pass before you have just 0.100 grams of the isotope left
Vadim26 [7]

Answer:

So, you're dealing with a sample of cobalt-60. You know that cobalt-60 has a nuclear half-life of

5.30

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1.00

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10.0

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A radioactive isotope's half-life tells you how much time is needed for an initial sample to be halved.

If you start with an initial sample

A

0

, then you can say that you will be left with

A

0

2

→

after one half-life passes;

A

0

2

⋅

1

2

=

A

0

4

→

after two half-lives pass;

A

0

4

⋅

1

2

=

A

0

8

→

after three half-lives pass;

A

0

8

⋅

1

2

=

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16

→

after four half-lives pass;

⋮

Explanation:

now i know the answer

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