Answer
thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.
It is called rust and it forms when water soaks into the metal forming a chemical reaction.
Answer:
It's nitrogen
Explanation:
cuz it has valence 3 and a diatomic gas at room temperature
Answer:
The activation energy for an endothermic reaction is quite large and usually takes extra energy from the environment, it is normally not a natural spontaneous process.
Explanation:
- Endothermic reactions require absorbing energy of the surrounding mainly in the form of heat.
- Chemical energy needs energy input to break the bonds.
- Examples of endothermic reactions: Photosynthesis
, melting of ice
, and evaporating liquid water.
