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skad [1K]
3 years ago
10

How many atoms are present in 179.0 g of iridium?

Chemistry
2 answers:
patriot [66]3 years ago
6 0
I dont know the answer


posledela3 years ago
4 0
160 atoms are present
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<img src="https://tex.z-dn.net/?f=I_%7B2%7D" id="TexFormula1" title="I_{2}" alt="I_{2}" align="absmiddle" class="latex-formula">
gogolik [260]

Answer: I2 is the Oxidant; while the 2S2O3(-2) is the reductant.

Explanation:

An Oxidant is any substance that oxidizes, or receives electrons from, another; in so doing, it becomes reduced in oxidation number.

A Reductant thus exactly the opposite.

Note that the equation provided shows that Iodine (I2) received an electron to become NEGATIVELY CHARGED:

I2 --> 2I-.

The oxidation number reduced from 0 to -1.

In contrast, the oxidation number of 2S2O3(-2) increases from -4 to -2.

Thus, I2 is the Oxidant; while the 2S2O3(-2) is the reductant.

7 0
3 years ago
Which statements accurately describe volume? Check all that apply. Volume is a physical property of an object. Volume is measure
Alex17521 [72]

Answer:

- Volume is a physical property of an object.

- One unit of volume is the milliliter.

- Liquids and solids have constant volumes.

Explanation:

5 0
3 years ago
Read 2 more answers
How many grams are in 8.23 moles of sodium oxide?​
konstantin123 [22]

Answer:

So, the mole ratio between sodium and sodium oxide is 2:1=2

Explanation:

6 0
2 years ago
Read 2 more answers
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is
umka21 [38]

Answer:

50. 5mol

Explanation:

The mass of Zinc required = 3.30 kg = 3300 grams

The relation between moles and mass is:

moles=\frac{mass}{atomicmass}

Atomic mass of Zinc = 65.38g/mol

molesofZinc=\frac{3300}{65.38}

molesofzinc=50.47mol

The answer to three significant figures will be 50.5 mol

3 0
3 years ago
The ____ formula is the combination of chemical symbols and numbers that represent the elements and number of atoms within a com
Strike441 [17]

Answer:

Chemical

Explanation:

The Chemical formula is the combination of chemical symbols and numbers that represent the elements and number of atoms within a compound.

8 0
3 years ago
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