bonding and compounds

Question 1

what are polyatomic ions?

Answer 1

ions with multiple atoms

Question 2

what is hydroxide?

Answer 2

OH-

Question 3

what is nitrate, what charge does it have?

Answer 3

NO3, -

Question 4

what is sulfate, what charge does it have?

Answer 4

SO4, 2-

Question 5

what is phosphate, what charge does it have?

Answer 5

PO4, 3-

Question 6

what is chlorate, what charge does it have?

Answer 6

ClO3, -

Question 7

what is carbonate, what charge does it have?

Answer 7

CO3, 2-

Question 8

What shape does 1 pair of bonded electrons around 1 atom have?

Answer 8

Linear

Question 9

What shape does 2 pairs of bonded electrons around 1 atom have?

Answer 9

Linear

Question 10

whats the bond angle of a linear bond?

Answer 10

180*

Question 11

whats the bond angle of a tigonal planar bond?

Answer 11

120*

Question 12

whats the bond angle of a tetrahedral bond?

Answer 12

109.5*

Question 13

whats the bond angle of an octahedral bond?

Answer 13

90*

Question 14

whats the bond angle of a trigonal bipyramidal bond?

Answer 14

120* and 90*

Question 15

what is ammonium?

Answer 15

NH4, 1+

Question 16

how do you test for carbonate ions (CO3)?

Answer 16

they react with acids, and form CO2 gas (bubbling/ effervescence)

Question 17

how do you test for sulfate ions (SO4)?

Answer 17

they react with barium ions, so add BaCl2