What is the oxidation number of oxygen in OF2

2 answers:

5 0

Well flourines oxidation number is -1 and since theres is two fluorine you multiply -1 by two witch gives you -2 meaning oxygen's has to be positive 2 since there is only one oxygen<span />

Serga [27]3 years ago

3 0

Oxygen almost always has an oxidation number of -2

The only exception is in H2O2 which makes it -1, and in OF2 which makes it +2

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A standard room temperature and pressure, most of the elements on the periodic table are

Maslowich

Answer:

Solids

Explanation:

At standard room temperature and pressure, most of the elements are solids.

Just a few of the elements are liquids and gases at this temperature.

The periodic table is made up of metals, metalloids and non-metals. Most of these substances are actually solid.

Some non-metals are gaseous at standard room temperature.

8 0

2 years ago

For the following reactions, write a balanced equation using half-reactions and calculate the voltage to be expected.

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a) $2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

b) $2Ag (s) +2H^(aq)$ → $2 Ag^+ (aq) +H_2(g)$

<h3>What are half-reactions?</h3>

The half-reaction method is a way to balance redox reactions. It involves breaking the overall equation down into an oxidation part and a reduction part.

$2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

$E^0 cell = E^0 (reduction) - E^0 (oxidation)$