the one I failed Flashcards

1
Q

In ionic compounds _____ gain more valence electrons to form negatively charged

A

nonmetals, anions

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

The ending of all polyatomic ions must be changed to -ide

A

false

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

In a molecule with covalent bonding,

A

atoms are held together by sharing electrons

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

A new solid that forms during a chemical reactions is called a

A

precipitate

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

ions do not have an overall charge

A

false

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

There can not be more then 2 reactants in a chemical reaction

A

false

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Percipitation

A

when a new solid forms in a solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Residue

A

A solid is refereed to as this when it is the material left behind after a separation process such as flirtation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The actual yield of a chemical reaction is measured on a balance in the lab

A

True, it is the amount of product that is obtained after it is performed in lab

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Percent yield is rarely 100% because..

A

other unexpected reactions occur which don’t produce the desired product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

protons and electrons are the number on upper left but neutrons??

A

to get neutron number you have to subtract atomic number and number on periodic table

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