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ozzi
4 years ago
11

Why are graphs used to understand an objects motion?

Chemistry
1 answer:
S_A_V [24]4 years ago
5 0
Hello!

Graphs are used to understand an object's motion because they can show the exact location of the object at any given moment. 

This is done with the help of a reference system. The most common reference system is the Cartesian coordinate system, which describes the location of an object through a set of 2 or 3 coordinates (depending if the system is in 2D or 3D).

Studying graphs of movement, we can know if the movement is cyclical, or the direction of the movement, determine tendencies and overall getting an unambiguous and precise understanding of the motion.

Have a good day! 


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Although coal is a complex mixture of substances, its elemental composition can be approximated by the formula <img src="https:/
Svetllana [295]

Answer:

The correct answer is option b.

Explanation:

2C_{135}H_{96}O_9NS+313O_2\rightarrow 270CO_2+2NO_2+2SO_2+96H_2O

Mass of coal burned = 1.00\times 10^6 metric ton = 1.00\times 10^6\times 10^3 kg=10^9 kg[/tex]

1 metric ton = 10^3kg

Molar mass of coal :

135\times 12g/mol+96\times 1g/mol+9\times 16 g/mol+1\times 14 g/mol+1\times 32 g/mol=1906 g/mol=1.906 kg/mol

1 g = 0.001 kg

Moles of coal ,n :\frac{10^9 kg}{1.906 kg/mol}=5.247\times 10^8 mol

If 2 moles of coal on combustion gives 270 moles of carbon dioxide than n moles of coal will give;

5.247\times 10^8 mol\times \frac{270}{2}=7.083\times 10^{10} mol of carbon dioxide.

Molar mass of carbon dioxide gas = 44 g/mol = 0.044 kg/mol

Mass of 7.083\times 10^{10} mol of carbon dioxide:

7.083\times 10^{10} mol\times 0.044 kg/mol=3.11\times 10^{11} kg

5 0
4 years ago
Knowing the chemical properties of a substance will tell you how a substance
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3 years ago
What does it mean for a element of a group to have a order?
lisabon 2012 [21]

In group theory, a branch of mathematics, the term order is used in two unrelated senses:

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This article is about the first sense of order.

The order of a group G is denoted by ord(G) or | G | and the order of an element a is denoted by ord(a) or | a |.

8 0
4 years ago
Each row in the periodic table corresponds to one energy level in an atom.<br><br> True Or False ?
Nitella [24]
For the answer to the question above asking, e<span>ach row in the periodic table corresponds to one energy level in an atom.

The answer is true.

I hope my answer helped you. Feel free to ask more questions. Have a  nice day!</span>
8 0
3 years ago
Read 2 more answers
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Crank
Granite is an igneous type of rock.
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