Question

How does a lone pair distort the molecular shape?

A. The lone pair pushes bonding atoms closer to the nucleus.
B. The lone pair forces bonding atoms away from itself.
C. The lone pair makes new bonds, changing the molecule's shape.
D. The lone pair forces bonding atoms farther from the nucleus.

Answer 1

@robtobey

Answer 2

@caozeyuan ??

Answer 3

let me think

Answer 4

C is wrong right off

Answer 5

B?or A?

Answer 6

I would say B because lone pair repose other electrons

Answer 7

so bonging electrons are further away

Answer 8

i was thinking the same thing

Answer 9

think about CO2 vs H2O

Answer 10

have time for a couple more?

Answer 11

Yep

Answer 12

Which of the following elements has the smallest atomic radius?

A. Ge
B. As
C. Br
D. Se

Answer 13

Ra is small if atom is to the right and up

Answer 14

doesnt it go from right to left?

Answer 15

No, because on the same row, the shell size is same but nuclear attraction is higher to the right, so radius smaller to the right

Answer 16

so which do u think

Answer 17

Br, it is further to right

Answer 18

ohhh i think i see it now

Answer 19

on the table

Answer 20

Which of the following has the largest radius?

A. Na+
B. Na
C. K
D. K+

Answer 21

A?

Answer 22

for cations, the ion is smaller than the corresponding atom

Answer 23

because electron is lost

Answer 24

So K?

Answer 25

what does the + mean?

Answer 26

positive charge

Answer 27

so K

Answer 28

Yep, should be right

Answer 29

How should more than one polyatomic ion be indicated in a chemical formula?

A. Put a number in front of the polyatomic ion in the chemical formula
B. Put parentheses around the atoms in the ion and then add a subscript
C. Put a roman numeral in parentheses after the polyatomic ion
D. Put a prefix in front of the polyatomic ion in the chemical formula

Answer 30

B?

Answer 31

more than one, you mean number?

Answer 32

like\[2SO _{4}^{2-}\]

Answer 33

i guess so, im just as curious as u r

Answer 34

You should ask for clarification, is the question talking about number of ions or the oxidation state of an atom

Answer 35

I am pretty sure it is the former

Answer 36

the website that my school uses is dumb

Answer 37

what do u think it would be?

Answer 38

did your teacher talked about atoms with more than one oxidation number?

Answer 39

and my teacher dont even know so i dont even ask them for help. so im stuck using this and google

Answer 40

asking my teachers gave me a worse score

Answer 41

I would go with A

Answer 42

ill trust you more than them

Answer 43

Which of the following is a binary compound?

A. H2SO4
B. O2-
C. NH4+
D. CaO

Answer 44

Binary means exactly two atoms

Answer 45

compound means no charge, so the answer is ...

Answer 46

A?

Answer 47

Nope,one strike, try again

Answer 48

D?

Answer 49

Great!

Answer 50

i have 1 more

Answer 51

Which of the following molecules or ions has a trigonal planar shape?

A. H2S
B. ClO4-
C. PCl5
D. SO3

Answer 52

D?

Answer 53

yep, I agree

Answer 54

ayee i got a 96! thank you

Answer 55

How should more than one polyatomic ion be indicated in a chemical formula?

A. Put a number in front of the polyatomic ion in the chemical formula
B. Put parentheses around the atoms in the ion and then add a subscript
C. Put a roman numeral in parentheses after the polyatomic ion
D. Put a prefix in front of the polyatomic ion in the chemical formula

Answer 56

thats the only one we got wrong

Answer 57

NO flutterING WAY! why not 100? you have the smartest guy in the world tutoring you!

Answer 58

lol thats what im saying

Answer 59

Well, go with C then B and D are just stupid, this question is too ambiguous

Answer 60

for real F that question

Answer 61

i really appreciate the help. i wont bug u for anymore

Answer 62

np, just tag me if you don't want to screw up in the future

Answer 63

ok thanks