Answer:
First one: Yes, It can be negative.
Explanation:
First one: The reason you can have negative acceleration is that acceleration can slow down, or decelerate, causing the negative acceleration.
FeS+O2=Fe2O3+SO2
Iron (II) sulfide + Oxygen gas
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The solvent particles must move apart to make room for solute particles. This process requires energy to overcome forces of attraction between solvent particles. The first step in the dissolving process is endothermic.
Answer:
The more water vapor in the air parcel, the more condensation can occur, and therefore, more rain. ... The air parcel then loses more energy, causing more rainfall. Wind pushes air parcels even higher in the troposphere, where it is colder. The air parcels will then lose more energy and more rain can happen.
I think is FALSE, is that right?
Ooo im taking chem this semester and just around this subject,
water is neutral and <span>H2CO3cant act as b-l base soo </span>the answer is HCIO4(aq)