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galben [10]
2 years ago
12

Please answer as quick as possible

Chemistry
2 answers:
OverLord2011 [107]2 years ago
4 0

Answer:

A - potassium........ M

pantera1 [17]2 years ago
4 0

Answer:

POTASSIUM

Explanation:

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<span>Explain the difference between a weak acid and a strong acid according to the Arrhenius theory his question in english</span>
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3 years ago
The total bonding energy for the products of a reaction is 2535 kJ/mol and the bonding energy of the reactants is 1375 kJ/mol. C
Dmitry [639]

Answer:

-1160kj/mol

Explanation:

the reaction is exothermic because heat is released to the environment

7 0
3 years ago
A light or optical microscope most commonly uused is a
kirill115 [55]
A bright feild is most commonly used 
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3 years ago
Bill, a lab technician, was asked to measure out sodium hydroxide (NaOH) for an experiment in a research lab. He was given a cho
Aleks04 [339]

Answer:

He is wrong . Most accurate is Buret .

Explanation:

The number of significant figure denotes the level of accuracy of a measurement .

Beaker can measure liquid in mL upto significant figure of 2 . That means it can measure volume in terms of 10 , 20 , 30mL etc . It can not measure 25 mL

accurately . The last figure of 28 mL is read by guess in the question . So it is not an accurate measurement .

Similarly , graduated cylinder can measure liquid upto significant figure of 3 .  That means it can measure volume in terms of 11 , 22 , 33 mL etc . It can not measure 25.5  mL accurately . The last figure of 28.3  mL is read by guess in the question . So it is less  accurate measurement .

Similarly , buret  can measure liquid upto significant figure of 4 .  That means it can measure volume in terms of 11.2 , 22.3 , 33.5 mL etc . It can not measure 25.53  mL accurately . The last figure of 28.32  mL is read by guess in the question . So it is most accurate among all the three instrument because it can measure accurately mL upto one tenth of it .

7 0
3 years ago
A scientific experiment must be
Blababa [14]
Repeatable

If it’s repeatable and you get the same answer constantly then it’s a good and accurate experiment
6 0
3 years ago
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