What is the main reason Spanish missionaries came to North America?
A. To convert the American Indians to the catholic religion
B. To protect Fort San Marcos from raids by the English
C. To help the settlers establish trade with the Indians
D. To assist in building strong forts in parris island
A. To convert the American Indians to the catholic religion
How do catalysts affect a chemical reaction?(1 point)
Responses
lower activation energy
lower activation energy
provide activation energy
provide activation energy
increase activation energy
increase activation energy
lose activation energy
lose activation energy
lower activation energy
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.
Sulfur, iron, and oxygen combine to form iron sulfoxide.
Sulfur, iron, and oxygen combine to form iron sulfoxide.
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.
What does the forward arrow in a chemical equation mean?(1 point)
Responses
The reaction proceeds quickly.
The reaction proceeds quickly.
The reaction yields something.
The reaction yields something.
The reaction proceeds slowly.
The reaction proceeds slowly.
The reaction is reversible.
The reaction is reversible.
Which kind of reaction is photosynthesis?(1 point)
Responses
exothermic
exothermic
temperature-independent
temperature-independent
endothermic
endothermic
light-independent
endothermic
Photosynthesis requires which kind of energy?(1 point)
Responses
thermal energy
thermal energy
mechanical energy
mechanical energy
light energy
light energy
heat energy