The correct answer is D. A solid has a high to very high melting point, great hardness , and poor electrical conduction, this is a covalent network solid. This is because of the large amount of energy required to break these bonds, the said properties are exhibited by these solids.
Answer: (P2/P1)=(T2/T1)
(P2/1200.0kPa)=(387/283)
P2=(387K/283K) * (1200kPa)
P2= 1641kPa
Explanation:
The formula would be MgMn2O8
The relationship of a pair of compounds could be one between these options :
- Structural isomerisms
happened when molecules with same molecular formula have bonded together in different orders
- Stereoisomerism
Happened when two or more compounds differing only in the spatial arrangement of their atom
hope this helps
Given reaction:
A + B ------ C + D
mass of A = 19 grams
Mass of B = 26 grams
Mass of C = 17 grams
To determine: The mass of D
Explanation:
As per the law of conservation of mass, in any chemical reaction the sum of masses of the reactants and products must remain unchanged.
Sum of masses of reactants = Sum of masses of products
19 g + 26 g = 17 g + D
Mass of D = (19+26) - 17 = 28 g
