b.It is a heterogeneous catalyst, so only a small amount is needed and it is easily separated from the products.
Explanation:
Platinum is best described as a heterogeneous catalyst in which only a small amount of it is needed and it can be easily separated from products.
A heterogeneous catalyst is a catalyst that exists in a different phase than the reactants.
A homogeneous catalyst is one that exists in the same phase as the reactants.
- A catalyst is a substance that speeds up the rate of chemical reactions.
- They help to lower the activation barrier for the reaction and are not used up.
- The reactants in the car exhausts are in the gaseous phases.
- Platinum is a solid metal.
- Therefore we can see that it is a heterogeneous catalyst.
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Hey!
The formula for dinitrigen monoxide is
It is also called as nitrous oxide .
It is colorless gas
It’s structure is linear.
Answer:
The period 2 element would be more reactive because the attractive force of protons is stronger when electrons are attracted to a closer electron shell.
Explanation:
Nonmetals want to add more electrons to their valence electron shell. Elements in period 2 have their valence shell closer their nucleus, then they are more reactive than period 4 elements.
Answer:
The coefficients are 2 for H₂O and 1 for Ca(OH)₂.
Explanation:
Let's consider the following reaction.
Ca(OH)₂(aq) + 2 HCl(aq) → CaCl₂(aq) + 2 H₂O(l)
According to the balanced equation, the molar ratio of H₂O to Ca(OH)₂ is 2:1. Using this conversion factor, we have the following proportion:
moles Ca(OH)₂. (2 mol H₂O ÷ 1 mol Ca(OH)₂) = moles H₂O
Answer:
The fingernails and toe nails protect the nerve endings at the ends of the finger and toes
