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torisob [31]
3 years ago
8

Observations made during an experiment are called

Chemistry
1 answer:
Marat540 [252]3 years ago
4 0
Observation consists of receiving knowledge of the outside world through our senses,or recording information using scientific tools and instruments.Any data recorded during an experiment can be called and observation.
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Definition of conduct (in physics)
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Answer:

transitive ​physicsif something conducts heat or electricity, heat or electricity can move through it.

Explanation:

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3 years ago
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Match the measurement with the correct number of significant digits:
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What are you measuring
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Type the correct answer in the box. Express your answer to three significant figures. Iron(II) chloride and sodium carbonate rea
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Answer:

The reaction can produce 287 grams of iron(II) carbonate

Explanation:

To solve this question we must find the moles of iron(II) chloride that react. Using the chemical equation we can find the moles of iron(II) carbonate and its mass -Molar mass FeCO3: 115.854g/mol-

<em>Moles FeCl2:</em>

1.24L * (2.00mol / L) = 2.48 moles FeCl2

As 1 mol FeCl2 produce 1 mol FeCO3, the moles of FeCO3 = 2.48 moles

<em>Mass FeCO3:</em>

2.48mol * (115.854g / mol) =

<h3>The reaction can produce 287 grams of iron(II) carbonate</h3>
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3 years ago
Which is not a physical property of water? weak adhesion with glass strong cohesion strong surface tension ability to move up th
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Ability to move up through thin tunes because a physical property is something you can observe about the matter. Out of all of them this one does not fit.
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3 years ago
A candle slowly burns until the last bit of wax and wick are gone. The two reactants in this chemical reaction are the wick and
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The component of the candle burning in the surrounding has been the oxygen in the air.

The burning of candle wax and wick has been the chemical reaction. It has been based on the reaction of wick with the atmospheric oxygen, resulting in the formulation of the wax burning.

<h3>Chemical reaction of burning of wax</h3>

The wax has been vaporizes by the heat of the flame, that has been resulted by the burning. The wick has been able to react with the oxygen and form the byproducts that helps in flame burning.

The end products have been wick and oxygen as the wax has been consumed in the reaction. The air in the surrounding has oxygen as the part of the system, as it has been involved in the reaction.

Learn more about candle burning, here:

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