Test- Chemical Bonding Flashcards
(19 cards)
1
Q
- Is NaF a covalent bond?
A
No
Nb.26.
2
Q
- Is H2O and example of a molecule?
A
Yes
Nb.3
3
Q
- Molecular compounds do not conduct electricity because they
A
Do not break up into ions.
Nb.3
4
Q
- Out of K, Ca, Kr, Br, which is the one that is most likely to gain electrons in a chemical reaction.
A
Br
Nb.27
5
Q
- What forms hard, brittle crystals with characteristic shapes.
A
Ionic compounds
Nb.15
6
Q
- What is the correct name for the compound between Magnesium and Sulfur?
A
Magnesium Sulfide
Nb.26
7
Q
- A group of covalently bonded atoms that acts together as one charged atom is a
A
Crystal
Nb.6
8
Q
- Electrons involved in the formation of chemical bonds are called
A
Valance electrons
Nb.9
9
Q
- Electrons involved in bonding between atoms are
A
Valance electrons
Nb.9
10
Q
- What is a double bond?
A
Two pairs of electrons shared between two atoms
Nb.20
11
Q
- Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the “2” tell you?
A
There are two bromide ions for every magnesium ion
Nb.25
12
Q
- How many electrons are shared between the hydrogen atoms in a molecule of H2 gas?
A
2
Nb.25
13
Q
- The properties of a compound are ________
the properties of the elements that form it.l
A
Different from
Nb.10
14
Q
- When ions having a positive charge from bonds with ions having a negative charge, the charge on the resulting compound is
A
Zero
Nb.4
15
Q
- Nitrate (NO3-), ammonium (NH4+), and carbonate( CO32-) are examples of ______ ions
A
Polyatomic
Nb.16
16
Q
- Chemical bonds form when valence electrons are ________ between atoms.
A
Shared
Nb.12
17
Q
- What type of bond is formed between two Oxygen atoms? Explain specifically what will happen to form the bond.
A
Covalent 2 oxygen atoms to form a double bond by sharing 4e- between them.
Nb.19
18
Q
- Why do noble gases rarely from compounds?
A
Bc they are already stable
Nb.20
19
Q
- What type of bond is formed between Sodium and Chlorine? Explain specifically what will happen to form the bond.
A
Ionic
Na gives it one valence electron e- to Cl— Na+1
Nb. 20
