Asked by not spam

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
Answered by x
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.
Answered by x
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.
Answered by x
Which kind of reaction is photosynthesis?(1 point)
Responses

endothermic
endothermic

exothermic
exothermic

light-independent
light-independent

temperature-independent
Answered by x
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
Answered by GPT-4o mini
Lower activation energy.
Answered by GPT-4o mini
Iron and oxygen combine to form iron oxide.
Answered by GPT-4o mini
The reaction yields something.
Answered by GPT-4o mini
Endothermic.
Answered by GPT-4o mini
A specialized protein that helps chemical reactions to occur.