Answer:
The advantages described below
Explanation:
Advantages of a balanced chemical equation versus word equation:
- easier to read: chemical equations typically only take one line and they include all the relevant information needed. They are short-hand notations for what we describe in words.
- balanced chemical equations show molar ratio in which reactants react and the molar ratio of the products. Those are coefficients in front of the species. This is typically not included in a word equation, for example, hydrochloric acid reacts with potassium hydroxide. The latter statement doesn't describe the molar ratio and stoichiometry.
- includes relevant information, such as catalysts, temperature and pressure above the arrow in the equation. We wouldn't have this in a word equation most of the time.
- shows the stoichiometry of each compound itself, e. g. if we state 'ammonia', we don't know what atoms it consists of as opposed to
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. - includes states of matter: aqueous, liquid, gas, solid. This would often be included in a word equation, however.
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Answer:
A
Explanation:
i had to answer this question a few weeks ago
In scientific notation, the measurement of each figure to three significant measurements are as follows:
- 87.073 meters = 8.71 × 10⁻¹ meters
- 4.3621 × 10⁸ meters = 4.36 × 10⁸ meters
- 0.01552 meter = 1.55 × 10² meters
- 9009 meters = 9.01 × 10² meters
- 1.7777 x 10-3 m = 1.78 × 10⁻³ meters
- 629.55 meters = 6.30 × 10² meters
A significant figure is the digits in a number that is dependable and absolutely essential to express the quantity of a figure in positional notation. They are utilized to represent the appropriate degree of precision.
A scientific notation is used to express a large number in an easy decimal way multiplied by its power of 10.
From the given information, in scientific notation, and to three significant figures, we have:
- 87.073 meters = 8.71 × 10⁻¹ meters
- 4.3621 × 10⁸ meters = 4.36 × 10⁸ meters
- 0.01552 meter = 1.55 × 10² meters
- 9009 meters = 9.01 × 10² meters
- 1.7777 x 10-3 m = 1.78 × 10⁻³ meters
- 629.55 meters = 6.30 × 10² meters
Therefore, from the above concept, we can conclude that the scientific notation of each figure in three significant figures is shown in bold format.
Learn more about scientific notation here:
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