Although coal and diamonds are both composed of carbons alone, they differ in their properties because of the bonds present in each substance. Diamonds are composed of covalent bonds which are strong and is crystalline in nature which makes it sturdier. Coal is amorphous which allows the slipping of irregular layers to each other making coal brittle
Answer:
The answer to your question is P1 = 1.4 atm
Explanation:
Data
Volume 1 = V1 = 735 ml
Pressure 1 = P1 = ?
Volume 2 = V2 = 1286 ml
Pressure 2 = P2 = 0.8 atm
Process
To solve this problem use Boyle's law.
P1V1 = P2V2
-Solve for P1
P1 = P2V2 / V1
-Substitution
P1 = (0.8 x 1286) / 735
-Simplification
P1 = 1028.8 / 735
-Result
P1 = 1.4 atm
Answer:
1 and 2
Explanation:
The given equation is:
Cl₂ + H₂ → 2HCl
A coefficient is the variable or number before a chemical specie.
In this reaction Cl₂ and H₂ are the reactants;
The coefficient of Cl₂ is 1,
H₂ is 1,
HCl is 2
The subscript is the number to the lower power after a chemical specie is denoted.
For Cl₂, it is 2
Answer: 29.93g
Explanation:
Q = 265J
C = 0.385J/g/°C
Δt = 23°C
M =?
Q = MCΔT
M = Q / CΔT = 265 / (0.385x23)
M = 29.93g
The H+ will react with Magnesium to release hydrogen Gas under the equation Mg + 2H+ --> Mg(2+) + H2(g)
Hope this Helps! :)
