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3 years ago

When an acid reacts with a metal, what is one of the usual products?

Chemistry

1 answer:

tiny-mole [99]3 years ago

7 0

The product of d reaction depends on d nature of the acid

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How many moles of Aluminum are produced when34.2 g of alumina are broken down through the process of electrolysis

Elan Coil [88]

Answer:

0.670 mol

Explanation:

Step 1: Write the balanced reaction for the decomposition of alumina

2 Al₂O₃ ⇒ 4 Al + 3 O₂

Step 2: Calculate the moles corresponding to 34.2 g of Al₂O₃

The molar mass of Al₂O₃ is 101.96 g/mol.

34.2 g × 1 mol/101.96 g = 0.335 mol

Step 3: Calculate the moles of Al produced from 0.335 moles of Al₂O₃

The molar ratio of Al₂O₃ to Al is 2:4.

0.335 mol Al₂O₃ × (4 mol Al/2 mol Al₂O₃) = 0.670 mol Al

6 0

3 years ago

A scientist produces zinc iodide (zni2). (a) calculate the minimum mass of zinc that needs to be added to 0.500 g of iodine so t

harina [27]

The minimum mass of Zinc, Zn that needs to be added to 0.500 g of iodine so that the iodine fully reacts is 0.128 g

<h3>Balanced equation </h3>

Zn + I₂ —> ZnI₂

Molar mass of Zn = 65 g/mol

Mass of Zn from the balanced equation = 1 × 65 = 65 g

Molar mass of I₂ = 127 × 2 = 254 g/mol

Mass of I₂ from the balanced equation = 1 254 = 254 g

SUMMARY

From the balanced equation above,

254 g of I₂ required 65 g of Zn

<h3>How to determine the mass of Zn needed </h3>

From the balanced equation above,

254 g of I₂ required 65 g of Zn

Therefore,

0.5 g of I₂ will require = (0.5 × 65) / 254 = 0.128 g of Zn

Thus, the minimum mass of Zn required is 0.128 g

Learn more about stoichiometry:

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4 0

2 years ago

Define molecular formula?

Mademuasel [1]

A molecular formula is an expression that states the number and type of atoms present in a molecule of a substance.

Example : H2O (water) There are 2 atoms of Hydrogen and 1 atom of Oxygen in this substance

6 0

3 years ago

Which of these is most likely to become a carbon film?

astraxan [27]

A flowering plant

A sea creatures shell

4 0

3 years ago

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12) A compound with an empirical formula of C₂H₂N and a molar mass of 46 grams per mole.

Sholpan [36]

The molecular formula of this compound is C₂H₂N.

Divide the molar mass of the compound by the molar mass of the molecular formula. The result will be an integer or very close to an integer. Multiply all subscripts of the molecular formula by the integers found in step 2. The result is a sum expression. A molecular formula is a formula that defines the number of atoms for each element in the molecule of a compound.

Displays the actual number of each atom in the molecule. Molecular compounds are inorganic compounds that take the form of discrete molecules. Examples are familiar substances such as water (H2O) and carbon dioxide. These compounds are very different from ionic compounds such as sodium chloride.

Learn more about The molecular here:-brainly.com/question/26044300

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6 0

1 year ago