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Ksenya-84 [330]
2 years ago
15

Help me pLSSSSSSSSSSSSSSS​

Chemistry
2 answers:
enyata [817]2 years ago
5 0

Answer:

they vary from reaction to reaction

aliina [53]2 years ago
4 0

Answer:

they are very difficult to notice

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Molarity= Moles/Vol

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What color does copper produce when it reacts to chlorine
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The color it produces is Bright green.

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The table describes the properties of four compounds.
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Compound B and D

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Both are good conductors of electricity.

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A baseball has a mass of 135 grams and a softball has a mass of 270 grams. In which of the following situations would they have
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The baseball is thrown twice as fast as the softball in the same direction.

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8 0
3 years ago
B) Quelle est la masse de tétraoxyde de trifer (Fe3O4) produite si 3,60 moles de trioxyde de
hram777 [196]

Answer:

626,4 g de Fe₃O₄

Explanation:

Nous commencerons par écrire l'équation équilibrée de la réaction entre le fer (Fe) et le trioxyde d'aluminium. Ceci est donné ci-dessous:

9Fe + 4Al₂O₃ -> 3Fe₃O₄ + 8Al

De l'équation équilibrée ci-dessus,

4 moles d'Al₂O₃ ont réagi pour produire 3 moles de Fe₃O₄.

Par conséquent, 3,6 moles d'Al₂O₃ réagiront pour produire = (3,6 × 3) / 4 = 2,7 moles de Fe₃O₄

Ainsi, 2,7 moles de Fe₃O₄ sont produites à partir de la réaction.

Enfin, nous déterminerons la masse massique de Fe₃O₄ produite par la réaction. Ceci peut être obtenu comme suit:

Mole de Fe₃O₄ = 2,7 moles

Masse molaire de Fe₃O₄ = (3 × 56) + (4 × 16)

= 168 + 64

= 232 g / mol

Masse de Fe₃O₄ =?

Mole = masse / masse molaire

2,7 = Masse de Fe₃O₄ / 232

Croiser multiplier

Masse de Fe₃O₄ = 2,7 × 232

Masse de Fe₃O₄ = 626,4 g

Par conséquent, 626,4 g de Fe₃O₄ sont produits à partir de la réaction

7 0
2 years ago
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