subject
Chemistry, 16.09.2021 17:10 trinity7265

Câu 14 : Tổng số hạt p , n , e trong 2 nguyên tử kim loại A và B là 142 , trong đó , tổng số hạt mang điện nhiều hơn tổng số hạt không mang điện là 42 , Số hạt mang điện của nguyên tử B nhiều hơn nguyên tử A là 12. Nguyên tử A và B lần lượt là

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 21:00
Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing
Answers: 3
question
Chemistry, 21.06.2019 22:00
Which produce would best increase the amount of heat energy that is actually gained by calorimeter b
Answers: 1
question
Chemistry, 22.06.2019 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 2
question
Chemistry, 22.06.2019 23:10
Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.
Answers: 3
You know the right answer?
Câu 14 : Tổng số hạt p , n , e trong 2 nguyên tử kim loại A và B là 142 , trong đó , tổng số hạt man...
Questions
question
Spanish, 01.01.2020 18:31
Questions on the website: 13722361