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2 years ago

Express 0.0000046 in scientific notation. [?]x10

Chemistry

1 answer:

aivan3 [116]2 years ago

3 0

Answer:

4.6 x 10⁻⁶

Explanation:

In scientific notation, the number should be written in between 1 - 10 and multiplied by 10 raised to a power.

In this case, the decimal place should be placed in-between the 4 and the 6. To do this, you must move the decimal place 6 digits to the right. When you move the decimal place to the right, the 10 should be raised to a negative number.

As such, 0.0000046 in scientific notation is 4.6 x 10⁻⁶.

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Directions: Each set of lettered choices below refers to the numbered statements immediately following it. Select the one letter

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Explanation :

Disproportionation reaction : It is defined as the reaction in which the same reactant undergoes both oxidation and reduction reaction. It is a redox reaction.

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

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Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

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$3Br_2(aq)+6OH^-(aq)\rightarrow 5Br^-(aq)+BrO_3^-(aq)+3H_2O(l)$

This reaction is a disproportionation reaction because in this reaction only one reactant bromine that shows both oxidation and reduction reaction.

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$Ca^{2+}(aq)+SO_4^{2-}(aq)\rightarrow CaSO_4(s)$

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$PtCl_4(s)+2Cl^-(aq)\rightarrow PtCl_6^{2-}(aq)$

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Answer:

False

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Answer:

see explanation

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