Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry Test Mistakes > 22/11/19 Christmas Exam > Flashcards

22/11/19 Christmas Exam Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

2 characteristics of transition elements

A

Form coloured ions and compounds

Their compounds often act as catalysts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

why does NH3 have a pyramidal shape?

A
  • It has 3 bonded pairs of electrons and 1 one lone pair on the outer shell of the central atom
  • The lone pair has a stronger repulsion so the bonded pairs are pushed closer together, the bonded pairs have a weaker repulsion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how many grams of PbO in 0.05 moles

A

0.05 x 223 = 11.15 g

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

nuclear equation for decay of polonium 210 . 1 alpha particle

A

210 Po82 -> 206Pb82 +4He2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly

Chemistry Test Mistakes (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions