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frozen [14]
3 years ago
10

Trường hợp nào sau đây là chất tinh khiết

Chemistry
2 answers:
juin [17]3 years ago
8 0
Sắt, thép và nước là một số ví dụ về một chất tinh khiết. Không khí có thể là một hỗn hợp đồng nhất thường được coi là một chất tinh khiết. Như chúng ta đã biết kim cương, đường sucrose, mật ong và không khí đều là những chất tinh khiết. Nước tinh khiết có hai nguyên tử hydro và một nguyên tử oxy.
Verdich [7]3 years ago
6 0

Answer:

where????

Explanation:

nasaan yung pag pipilian???

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A block of wood has a volume of 64 cm3 and a mass of 46 grams. What is the density of the block?
Rom4ik [11]

The correct answer is 0.72 g/cm3

Explanation:

The density of a material depends on both its mass (amount of matter), which is usually provided in grams (g), and its volume (space occupied), which is provided in units such as cubic centimeters cm3. Moreover, to find how dense the material is, take the mass and divide it into the volume. The process for finding the density of the block of wood is shown below:

d = \frac{m}{v}

d = \frac{46 g}{64 cm3}

d = 0.718 g/cm3

This means the density is 0.71g/cm3 and this can be rounded to 0.72 g/cm3

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