Lower activation energy.
How do catalysts affect a chemical reaction?(1 point)
Responses
increase activation energy
increase activation energy
lose activation energy
lose activation energy
provide activation energy
provide activation energy
lower activation energy
9 answers
What happens during rusting of an iron nail?(1 point)
Responses
Sulfur and oxygen combine to form a sulfur dioxide coating.
Sulfur and oxygen combine to form a sulfur dioxide coating.
Iron and sulfur combine to form iron sulfide.
Iron and sulfur combine to form iron sulfide.
Iron and oxygen combine to form iron oxide.
Iron and oxygen combine to form iron oxide.
Sulfur, iron, and oxygen combine to form iron sulfoxide.
Responses
Sulfur and oxygen combine to form a sulfur dioxide coating.
Sulfur and oxygen combine to form a sulfur dioxide coating.
Iron and sulfur combine to form iron sulfide.
Iron and sulfur combine to form iron sulfide.
Iron and oxygen combine to form iron oxide.
Iron and oxygen combine to form iron oxide.
Sulfur, iron, and oxygen combine to form iron sulfoxide.
Iron and oxygen combine to form iron oxide.
Question
What does the forward arrow in a chemical equation mean?(1 point)
Responses
The reaction proceeds quickly.
The reaction proceeds quickly.
The reaction proceeds slowly.
The reaction proceeds slowly.
The reaction yields something.
The reaction yields something.
The reaction is reversible.
What does the forward arrow in a chemical equation mean?(1 point)
Responses
The reaction proceeds quickly.
The reaction proceeds quickly.
The reaction proceeds slowly.
The reaction proceeds slowly.
The reaction yields something.
The reaction yields something.
The reaction is reversible.
The reaction yields something.
Which kind of reaction is photosynthesis?(1 point)
Responses
endothermic
endothermic
exothermic
exothermic
light-independent
light-independent
temperature-independent
Responses
endothermic
endothermic
exothermic
exothermic
light-independent
light-independent
temperature-independent
Endothermic.
Which option describes an enzyme? (1 point)
Responses
a specialized carbohydrate that changes during a chemical reaction
a specialized carbohydrate that changes during a chemical reaction
a specialized protein that changes during a chemical reaction
a specialized protein that changes during a chemical reaction
a specialized protein that helps chemical reactions to occur
a specialized protein that helps chemical reactions to occur
a specialized carbohydrate that helps chemical reactions to occur
Responses
a specialized carbohydrate that changes during a chemical reaction
a specialized carbohydrate that changes during a chemical reaction
a specialized protein that changes during a chemical reaction
a specialized protein that changes during a chemical reaction
a specialized protein that helps chemical reactions to occur
a specialized protein that helps chemical reactions to occur
a specialized carbohydrate that helps chemical reactions to occur
A specialized protein that helps chemical reactions to occur.
11 answers