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Scorpion4ik [409]
3 years ago
10

Match the element to its oxidation number. Sulfur

Chemistry
2 answers:
AlexFokin [52]3 years ago
8 0

Answer:+6

Explanation:

shtirl [24]3 years ago
5 0
It’s oxidation number is +6
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Determine the molality of ions in a solution formed by dissolving 0.187 moles of NaCl in 456 grams of water. The density of the
PSYCHO15rus [73]

Answer:

Molality Ions Na⁺ = 0.410 m

Molality Ions Cl⁻ = 0.410 m

Total ion molality = 0.820 m

Explanation:

Molality (m) is defined as moles of solute that are dissolved in 1000g (1kg) of solvent. In this case, the molality of the ions is requested, so it should be borne in mind that when the NaCl salt dissolves in the water, it dissociates forming ions as follows:

NaCl ⇒Na⁺ (aq) + Cl⁻ (aq)

Therefore, <em>for each mole of salt that dissolves, you will have 1 mole of Na⁺ and 1 mole of Cl⁻ </em>

Knowing the amount of initial solute moles and the mass of water, we proceed to perform the calculations for each ion:

<em>Ions Na⁺</em>

456 g of H₂O ____ 0.187 mol Na⁺

1000 g of H₂O ____ X = 0.410 m

Calculation: 1000 g x 0.187 mol / 456 g = 0.410 mol

<em>Ions Cl⁻</em>

456 g of H₂O ____ 0.187 mol Cl⁻

1000 g of H₂O ____ X = 0.410 m

Calculation: 1000 g x 0.187 mol / 456 g = 0.410 m

If both results are added, the total molality of the ions will be obeyed:

0.410 m + 0.410 m = 0.820 m

This means that <em>for every kilogram of water, 0.820 moles of dissociated ions from NaCl are dissolved.</em>

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3 years ago
The number 875000 written in scientific notation would be
babymother [125]

Answer:

8.75 x 10^5

Explanation:

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how would physical changes to Earth such as an iceberg or rising sea levels lead to physical changes in organisms?
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If there was more water area and less land more animals would adapt to the water life than land. Like for example more evolving fins or even amphibians
just staying in water and no longer needing legs or the things they use for living on the land. 

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What is the name of the large dome-shaped muscle under your lungs that helps you breathe?
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That would be your diaphragm :)
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Magma can partially crystallize at depth and then rise to shallow depths where the remaining magma solidifies. The early-formed
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<h2>Phenocrysts and Porphyritic texture </h2>

Explanation:

  • The early formed crystals are of phenocrysts and the texture of these crystals is porphyritic texture.  
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