Answer: Cereal is considered a soup and a hot dog is considered a
sandwich.
Answer is - Decreasing surface area of a solid reactant, rate of reaction can be slowed down.
Explanation: The quantity of a reactant species consumed or the quantity of product species formed in unit time in a chemical reaction is called rate of reaction. With passage of time, concentration of reactant decreases and concentration of product increases. Rate of reaction depends on various factors like- concentration of reactant, temperature, nature of reactant, catalyst and surface area of reactant.
By increasing the concentration of the reactants, rate of the reaction increases.
Presence of catalyst increases the rate of reaction.
With increase in temperature, kinetic energy of molecules increases which results to more number of effective collisions, so, rate of reaction increases.
With increase in the surface area of reactant, more number of molecules can react at a time and by decreasing the surface area of solid reactant rate of the reaction will diminish/ decrease.
Answer:
Option D.
Explanation:
Let's apply the Ideal Gases law to solve the problem.
P . V = n . R . T
First of all we convert the temperature value from °C to K
77°C + 273 = 350K
and the pressure from mmHg to atm
623 mmHg . 1 atm/760 mmHg = 0.82 atm
We replace data: 0.82 atm . 17.5L = n . 0.082 L.atm/mol.K . 350K
(0.82 atm . 17.5L) / (0.082 L.atm/mol.K . 350K) = n
0.50 moles = n
These are the moles that corresponds to 22 g of the gas, so the molar mass will be → 22g / 0.50 mol = 44 g/mol
That molar mass corresponds to CO₂ → 12 g (C) + 16 g (O) . 2 = 44 g/mol
Answer: ![[Ni(NH_3)_3Br]Cl](https://tex.z-dn.net/?f=%5BNi%28NH_3%29_3Br%5DCl)
and ![[Ni(NH_3)_3Cl]Br](https://tex.z-dn.net/?f=%5BNi%28NH_3%29_3Cl%5DBr)
are ionization isomers.
![[Pt(Cl)_2(SCN)_4]^{4-}](https://tex.z-dn.net/?f=%5BPt%28Cl%29_2%28SCN%29_4%5D%5E%7B4-%7D)
and ![[Pt(Cl)_2(NCS)_4]^{4-}](https://tex.z-dn.net/?f=%5BPt%28Cl%29_2%28NCS%29_4%5D%5E%7B4-%7D)
are linkage isomers.
Explanation:
Ionization isomerism occur when a ligand that is bound to the metal center exchanges places with an anion or neutral molecule that was originally outside the coordination complex
Thus and are ionization isomers.
Linkage isomerism is the existence of coordination compounds that have the same composition differing with the connectivity of the metal to a ligand.
Thus and are linkage isomers.
