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4vir4ik [10]
2 years ago
9

Two types of liquids, two types of gases, two types of solids.

Chemistry
2 answers:
JulsSmile [24]2 years ago
5 0
Liquid=soda, water
Gases=air, carbon dioxide
Solid=food, ice
snow_tiger [21]2 years ago
3 0

Answer:

liquids: water and soda

gases: oxygen and carbon dioxide

solid: a chair and a notebook

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Which of the following pieces of laboratory glassware should be used to most accurately measure out a 25.00 ml sample of a solut
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Answer:

The correct answer is 25 mL graduated cylinder (it should be used in all the cases)

Explanation:

In order to measure 25.00 ml sample of a solution it should be used a 25 mL graduated cylinder, as it is previously and properly calibrated. The other laboratory glassware, beaker and erlenmeyer, have graduations which are approximate, so they are used when exact volumes are not needed.

ii) graduated cylinder has the least uncertainly. It is more accurate than a beaker or erlenmeyer (to within 1%)

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In this case, we need to keep in mind that exothermic reactions release heat, so they increase the temperature as the final energy is less than the initial energy; in contrast, endothermic reactions absorb heat, so they decrease the temperature as the final energy is greater than the initial energy.

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What is the hydrogen ion concentration of a solution with a pH of 2.0?
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