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padilas [110]
3 years ago
14

How would you determine the proper number of significant figures for measurement of a liquid using a graduated cylinder?

Chemistry
1 answer:
Veronika [31]3 years ago
4 0
You get ur answer
Ex: 4.5
And put a rounding number at the end/uncertain digit
Ex: 4.50
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Which of the following is one way creativity can help scientists?
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Answer:

One way creativity is helpful to scientists is when they need to come up with a experiment or cure for something their imaginastion is very helpful. The reason for that is with creativity they could get answers much quicker!

Explanation:

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The following equilibrium is formed when copper and bromide ions are placed in a solution:
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Answer:

A)

1. Reaction will shift rightwards towards the products.

2. It will turn green.

3. The solution will be cooler..

B) It will turn green.

Explanation:

Hello,

In this case, for the stated equilibrium:

heat + Cu(H_2O)_6 ^{+2} (blue) + 4Br^- \rightleftharpoons 6H_2O + CuBr_4^{-2} (green)

In such a way, by thinking out the Le Chatelier's principle, we can answer to each question:

A)

1. If potassium bromide, which adds bromide ions, is added more reactant is being added to the solution, therefore, the reaction will shift rightwards towards the products.

2. The formation of the green complex is favored, therefore, it will turn green.

3. The solution will be cooler as heat is converted into "cold" in order to reestablish equilibrium.

B) In this case, as the heat is a reactant, if more heat is added, more products will be formed, which implies that it will turn green.

Regards.

3 0
3 years ago
Which element below is the most reactive? Hydrogen chlorine neon oxygen
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Answer:

Chlorine

Explanation:

Chlorine has an atomic number of 17 and a configuration of 2, 8, 7. In the outermost shell, it has 7 seven electrons which means that it needs just one more electron to attain an octet configuration in that shell. Therefore it's can react quickly with any nearby nucleophile.

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Produces charged particles (ions) from the chemical substances that are to be analyzed
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A. All of the answer choices are correct.

Explanation:

Giant sequoia trees

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  • It incorporates the carbon dioxide into the biomass .
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