Answer: observe the rate of the reaction and then observe it again with the catalyst included.
Explanation:
Rate of the reaction is determined by how fast reactants change into products.
The reactants must possess a minimum amount of energy called as activation energy to cross the energy barrier and convert to products.
A catalyst is a substance which when added to a chemical reaction, increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and convert to products.
The catalyst thus increases the rate of reaction.
Balanced chemical reaction:
3K₂SO₄(aq) + Ca₃(PO₄)₂(s) → 2K₃PO₄(aq) + 3CaSO₄(s).
Ionic reaction:
6K⁺(aq) + 3SO₄²⁻(aq) + Ca₃(PO₄)₂(s) → 6K⁺(aq) + 2PO₄³⁻(aq) + 3CaSO₄(s).
Net ionic reaction: 3SO₄²⁻(aq) + Ca₃(PO₄)₂(s) → 2PO₄³⁻(aq) + 3CaSO₄(s).
aq(aqueous) means
dissolved in water.
s(solid) means that salt not dissolved in water.
This chemical reaction is double displacement
reaction - cations and anions of the two
reactants switch places and form two new compounds.
Answer:
B
Explanation:
sorry I have to write here
Answer:
We must use the equation P2= (P1•T2)/T1 and plug in what we have.
We have to convert our temperature to kelvins for this to work. We add 273 to either of the temperatures to convert it. So we are left with, T1=298.15K and T2=312.15K.
Now we plug in.
P2=(1.91atm•312.15K)/298.15K
Using PEMDAS we can eliminate the K on the numerator and denominator so that we are left with the atm’s.
P2=(1.91atm•312.15)/298.15
P2=1.99atm
Solution:
1.99 atm
and
ions are held together by strong coloumbic attractive force. Hence NaCl has highest boiling point'
and
are polar protic molecules. Hence they possess london dispersion force, dipole-dipole force and hydrogen bonding as intermolecular forces.
