Answer:
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma. The terrestrial planets are the four innermost planets in the solar system.
The percent composition of what? It should ask to find the percent composition of one of the parts like copper, sulfer, or water.
Answer is C, continents were once all joined together
Answer:
26.981539 u
Atomic number: 13
Symbol: Al
Electron configuration: [Ne] 3s²3p¹
Answer:
A) The reverse of the reaction is spontaneous
Explanation:
Spontaneous means those reaction which occur own their own or just need an initiation. As we know that,
∆G = ∆H-T∆S,
A reaction is spontaneous if ∆G Comes out to be negative . Because only those reactions occur in which either ∆H ( enthalpy change) is negative or ∆S (entropy change) is positive or both condition satisfied , as if in a reaction, let
A + B ------> B + C
If ∆G is positive when reaction proceed in forward direction, i.e. , it means it will be negative if proceed in backwards direction i.e on reactants side . Which means for such reaction backwards reaction is spontaneous.
