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Tasya [4]
3 years ago
5

She remembered that chemical equations can summarize what happens in a chemical reaction. What is the name of the two parts foun

d on the left side of the equation below? 4 Fe + 3O2 → 2Fe2O3 A. products B. reactants C. scientific notation D. synthesis
Chemistry
1 answer:
Degger [83]3 years ago
6 0

Answer:

The name of the two parts found on the left side of the equation is <u><em>reactants.</em></u>

Explanation:

Chemical reaction is the way one substance reacts against another. That is, a chemical reaction is that chemical process in which two or more substances, by the action of an energy factor, are converted into other substances. The new substance (s) that are formed usually present a totally different appearance from that of the starting substances.

In a chemical reaction there are the substances that react, that is, the reactants, and the substances produced, called products.

A chemical reaction is represented by a chemical equation. The formulas of the reactants are written on the left, and those of the products on the right, both separated by an arrow indicating the direction of the reaction.

Reactants ⇒ Products

Then, <u><em>the name of the two parts found on the left side of the equation is reactants.</em></u>

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If the trend in a property is periodic, it means it will
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Answer:

d) repeat

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3 years ago
1.24 moles of magnesium arsenate are dissolved in 1.74 kg of solution. Calculate the molality of the solution.
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Answer:

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3 years ago
The following measurements were made to determine the density of a material whose value was, according to the Handbook of Chemis
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Answer:

1.These results are accurate because the collected data is very close to the actual value.

4.These results are precise because all three trials are within a very close range.


Explanation:


Although in the ordinary language the terms precision and accuracy may be confused, in science those terms refer different properties of the measurements.


The accuracy  is how close a measurement is to the true value, while the the precision refers to the reproducibility and repeatability, this is how the results show  the same (close) value.


To differentiate precision and accuracy, It is very illustrative, to use the image of a throwing arrows to a target: if the arrows get close to the center of the target, then the results are accurate (close to the goal). If the arrows are not close to the cener of the target, but they are all close to each other, then the result is precise (the arrows land, approximately, in the same spot every time).

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