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3 years ago

Which type of graph is best used to show the percentage of reactant molecules that collide during a reaction?

2 answers:

7 0

A circle graph, or a pie chart or graph, would be the type of graph that is best used when showing the <span>percentage of reactant molecules that collide during a reaction in a graphical representation. In addition, the circle graph mainly consists of a circle being divided into parts proportional to the whole.</span>

skelet666 [1.2K]3 years ago

6 0

Answer:

Circle Graph

Explanation:

A scatter plot shows distribution of some numbers or properties versus another property. So it should be used for analysis of distribution or probability of something.

Stem and leaf plot are used when we have to show splitting of a stem ( a number) into leaves (another numbers).

So for percentage of reactant molecules colliding cannot be represented by scatter plot or stem and leaf plot.

In a circle graph or pie chart, we divide a circle (considering it to be 100%) into different parts based on fraction or percentage of each component.

For percentage of reactant molecule, we can divide the whole circle into two parts. One part showing the percentage of non reacting molecules and other part showing the percentage of reactant molecules undergoing collision.

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3 years ago

a 160 milligram sample of a radioactive isotope decays to 10 kilograms in 12 years. what is the half life of this element

Shkiper50 [21]

Answer:

3 years

Explanation:

Given data:

Initial amount of sample = 160 Kg

Amount left after 12 years = 10 Kg

Half life = ?

Solution:

at time zero = 160 Kg

1st half life = 160/2 = 80 kg

2nd half life = 80/2 = 40 kg

3rd half life = 40 / 2 = 20 kg

4th half life = 20 / 2 = 10 kg

Half life:

HL = elapsed time / half life

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gayaneshka [121]

Answer:

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Explanation:

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3 years ago

A cylinder, with a piston pressing down with a constant pressure, is filled with 1.90 moles of a gas (n1), and its volume is 42.

EleoNora [17]

Avagadro's law gives the relationship between volume of gas and amount of moles of gas. It states that at constant temperature and pressure, volume of gas (V) is directly proportional to number of moles of gas (n).
V/n = k
where k - constant
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V1 = 42.0 L
n1 = 1.90 mol
n2 = 1.90 mol - 0.600 = 1.30 mol
substituting the values in the equation
$\frac{42.0 L}{1.90 mol} = \frac{V}{1.30 mol}$
V = 28.7 L
Volume of the gas is 28.7 L

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Explanation:

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