2 years ago

3Mg(OH), + 2АІСІ, 3MgCI, + 2Al(OH), I need this asap

Chemistry

1 answer:

blondinia [14]2 years ago

5 0

5A(oic)nehrddfbfbffbdgdgdv

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The correct answer is B. exogenous

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Let us try to describe exogenous and endogenous variables an exogenous variable value is influenced only by factors outside a model or system and is forced onto the model, while a change in an exogenous variable is known as an exogenous change. Also an endogenous variable is one whose value is influenced only by the system or model under study.

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3 years ago

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What is the half-life of an isotope that decays to 6.25% of its original activity in 18.9 hours?

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Radioactive material obeys 1st order decay kinetics,
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Given: Initial conc. 100, Final conc. = 6.25, t = 18.9 hours

∴ k = $\frac{2.303}{18.9} X log \frac{100}{6.25}$ = 0.1467 hours^(-1)

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Lady_Fox [76]

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3 years ago

Which has a geographic North Pole and South Pole?

Bogdan [553]

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A. Earth only

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plz mark me as brainliest :)

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2 years ago

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