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lesya692 [45]
3 years ago
11

The ____ is the time required for one half of the atoms of a radio scope to ____.

Chemistry
1 answer:
mash [69]3 years ago
7 0
First blank is: Half-Life
Second Blank is: decay into its products
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Answer:

3 moles

Explanation:

3 moles atoms are needed to react with 50 grams of O2 gas.

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3. Some of the reagents used in this lab are easily confused: such as persulfate (S208?)
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Answer:

Different compounds are formed.

Explanation:

Due to this switching of chemicals, the result of both beakers will be different because the chemicals react with the different solution in the beaker. The composition of both chemicals are different from one another which produces different compounds or products when they are mixed with the solution so we can say that this switching of chemicals will definitely affect the results of the experiment. The student will observe the formation of different compounds and different colour of the solution.

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Explain why magnesium bromide has a high melting point?
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Strong covalent bonds require significant energy to be broken?
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Consider formula A to be v = StartFraction 2 pi r over T EndFraction and formula B to be v2 = GStartFraction 2 pi r over T EndFr
MissTica

Answer:

The formulas that will be used are:

Situation one:

The moon will be experiencing gravitational force in the form of centripetal force, so we equate the two formulas.

Gravitational force = GMm /r²

Centripetal force = mv²/r

Equating,

GMm/r² = mv²/r

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The first scenario will use the formula v² = GM/r

Situation 2:

The second situation will use the simple distance over time formula for velocity, where the distance will be the circumference and the time will be in seconds.

v = 2rπ/t

Explanation:

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How many atoms are in 1 mole of water, H2O?
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