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morpeh [17]
2 years ago
10

True or False: Neutrons have both a positive and negative charge

Chemistry
2 answers:
kvv77 [185]2 years ago
8 0

Answer:

false

Explanation:

uysha [10]2 years ago
7 0

Answer:

false

Explanation:

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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
wel

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%)

iii) A 25 mL graduated cylinder should be used because it is the most accurate lab glassware (between those were mentioned: beaker, erlenmeyer).

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What bonds of the reactants are broken in this reaction? What bonds are formed in the product?
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Determine the elements with these electron configurations
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1s2 2s2 2p6 3s2 3p6 4s2 3d6= Iron
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Which of the following is a strong base?
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Answers are at the pdf. 

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