Answer: The correct answer is true.
Explanation:
There are two types of reactions based on the heat absorbed or released:
1. Exothermic reactions: In these reactions, heat is released. The energy of the products is less than the energy of the reactants. The for these reactions is negative.
2. Endothermic reactions: In these reactions, heat is absorbed by the reactants. The energy of the products is more than the energy of the reactants. The for these reactions is positive.
In the given equation:
The energy is written on the product side, which means that the heat is released in the reaction. Hence, the given equation is a exothermic reaction.
Therefore, the given statement is true.
Not sure but if I were to guess I would say it is solid steel
There would be <span>production of acetic acid from moisture that gets inside the bottle. What happens is that water molecules reacts with the aspirin protonating an oxygen in the acetic group and allowing it to detach from the molecule producing acetic acid which is the main cause of the vinegar smell.</span>
Baking something(chemical) and a ice crem melting (phyisical)
To answer this item, we are to assume that the given gas behaves ideally such that it can follow one of the simplified ideal gas law as written below,
P₁V₁ = P₂V₂
where P is the pressure and V is the volume.
Substituting the known values, while V₂ is unknown,
(100 atm)(10 L) = (1 atm)(V₂)
The value of V₂ is calculated to be equal to 1000 L.
The number of balloons that can be filled is as calculated.
n = (1000 L) / (1 L / balloon)
n = 1000