Which statement comparing ionic and covalent bonds is correct?
a
More electrons are transferred from covalent bonds than ionic bonds.
b
The difference between electronegativities is greater in covalent bonds than for atoms in ionic bonds.
c
Covalent bonds tend to be less polar than ionic bonds.
d
Elements in Group 1A are more likely to form covalent bonds than ionic bonds with other atoms.
c
Covalent bonds tend to be less polar than ionic bonds.
Why does a higher concentration increase the rate of reaction?
a
It lowers the activation energy.
b
It increases the frequency of collisions.
c
It decreases the amount of reactants.
d
It increases the surface area of the particles
b
It increases the frequency of collisions.
A bath bomb is a solid sphere made of a weak base and a weak acid. When it you add it to a bathtub, it mixes with the water to create a soapy solution. If you want it to completely and quickly dissolve a large bath bomb, what might you do?
Lush bath bomb: See how it's made from start to finish
a
Increase the water temperature, which increases the solubility of the bath bomb - dissolving it more quickly.
b
Decrease the water volume, which increases the solubility of the bath bomb - dissolving it more quickly.
c
Decrease the water temperature, which increases the solubility of the bath bomb - dissolving it more quickly.
d
Increase the water acidity to a pH of 2, which increases neutralization of the bath bomb - and then take a shower, instead
a
Increase the water temperature, which increases the solubility of the bath bomb - dissolving it more quickly.
Which statement correctly compares synthesis and decomposition reactions?
Meme Creator - Funny at least I know the difference between ...
a
Synthesis and decomposition reactions are opposites of each other. Synthesis reactions are in the form A + B → AB, while decomposition reactions are in the form AB → A + B.
b
Synthesis and decomposition reactions are both neutralization reactions. Synthesis reactions are in the form AB → A + B, while decomposition reactions are in the form A + B → AB.
c
Synthesis and decomposition reactions are both neutralization reactions. Synthesis reactions are in the form A + B → AB, while decomposition reactions are in the form AB → A + B.
d
Synthesis and decomposition reactions are opposites of each other. Synthesis reactions are in the form AB → A + B, while decomposition reactions are in the form A + B → AB.
a
Synthesis and decomposition reactions are opposites of each other. Synthesis reactions are in the form A + B → AB, while decomposition reactions are in the form AB → A + B.
Grinding a Tylenol tablet into powder increases the rate of reaction due to increased ____________________.
a
temperature
b
reactants mass
c
surface area
d
concentration
c
surface area
Please review this model chemical reaction: A + 2B ---> C + 4D
Which of the above represents the reactants? Select ALL correct responses, below.
a
C + 4D
b
2B
c
A
d
C