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3 years ago

¿Cual es porcentaje de una solucion que contiene 10g de sal disueltos en 500 mL de solución?

Chemistry

1 answer:

never [62]3 years ago

4 0

Answer:

0.02 g/ml

Explanation:

si dividimos 10 con 500, es decir, 10/500, obtenemos 0.02. Las unidades serán g / ml.

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Which of the following examples is a molecule with a covalent bond?

serious [3.7K]

Answer:

B. CO

Explanation:

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3 years ago

Compare the values of the spin quantum number for two electrons in the same orbital

Leokris [45]

If there are 2 electrons in the same orbital, the spin numbers would be different for both of these 2 electrons. One would have an up spin and the other a down spin.

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3 years ago

What is the relationship between melting/boiling point and intermolecular forces

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2 years ago

Qué tipo de reacción es el siguiente? CH4 + 02 CO2 + H2O

Tatiana [17]

Answer:

Combustion reaction

Explanation:

Let's consider the following balanced equation.

CH₄ + 2 O₂ ⇒ CO₂ + 2 H₂O

This reaction is known as a combustion reaction, in which a compound reacts with oxygen to form a compound of carbon and water.

If the product is carbon dioxide, the combustion is complete.
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3 years ago

Read 2 more answers

How many particles are in 47.7 g of Magnesium? (Round the average

Lynna [10]

Answer:

1.18 × 10²⁴ particles Mg

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

Step 1: Define

47.7 g Mg

Step 2: Identify Conversions

Avogadro's Number

Molar Mass of Mg - 24.31 g/mol

Step 3: Convert

$47.7 \ g \ Mg(\frac{1 \ mol \ Mg}{24.31 \ g \ Mg} )(\frac{6.022 \cdot 10^{23} \ particles \ Mg}{1 \ mol \ Mg} )$ = 1.18161 × 10²⁴ particles Mg

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

1.18161 × 10²⁴ particles Mg ≈ 1.18 × 10²⁴ particles Mg

3 0

2 years ago