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Blababa [14]
3 years ago
15

Which is an example of making a quantitative observation?

Chemistry
2 answers:
Zolol [24]3 years ago
3 0
Answer:
measuring the mass of metal used in a reaction
Slav-nsk [51]3 years ago
3 0

Answer:

A. measuring the mass of metal used in a reaction

Explanation:

edg 2020

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7 0
3 years ago
Read 2 more answers
What volume of 0.160 m li2s solution is required to completely react with 130 ml of 0.160 m co no3 2?
Over [174]
The  volume  of  0.160    m   Li2S  solution  required  to  completely  react  with  130 ml  of 0.160  CO(NO3)2  is calculated   as  below

write the  reacting  equation

Co(NO3)2 +  Li2S = 2LiNO3  +  COS

find the    moles  of CO(NO3)2  = molarity  x  volume

=  130 ml  x  0.160=20.8  moles

since the reacting moles between CO(NO3)2  to LiS  is   1:1  the  moles of LiS  is  also  20.8  moles

volume  of Lis  is  therefore =  moles of Lis/ molarity  of LiS

=  20.8/0.160 =  130 Ml
3 0
3 years ago
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