Catalysts lower activation energy in a chemical reaction.
How do catalysts affect a chemical reaction?(1 point) Responses increase activation energy increase activation energy provide activation energy provide activation energy lose activation energy lose activation energy lower activation energy
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What happens during rusting of an iron nail?(1 point) Responses Sulfur, iron, and oxygen combine to form iron sulfoxide. Sulfur, iron, and oxygen combine to form iron sulfoxide. 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.
During the rusting of an iron nail, iron and oxygen combine to form iron oxide.
What does the forward arrow in a chemical equation mean?(1 point) Responses The reaction proceeds slowly. The reaction proceeds slowly. The reaction proceeds quickly. The reaction proceeds quickly. The reaction yields something. The reaction yields something. The reaction is reversible.
The forward arrow in a chemical equation indicates that the reaction yields something.
Which kind of reaction is photosynthesis?(1 point) Responses light-independent light-independent exothermic exothermic endothermic endothermic temperature-independent
Photosynthesis is an endothermic reaction.
Photosynthesis requires which kind of energy?(1 point) Responses thermal energy thermal energy heat energy heat energy mechanical energy mechanical energy light energy
Photosynthesis requires light energy.
10 answers