Answer:
Height and mass
Explanation:
The potential energy of a body is the energy due to the position of a body.
It is mathematically expressed as:
Potential energy = m g h
m is the mass of the body
g is the acceleration due to gravity
h is the height of the body
Acceleration due to gravity on the earth surface is a constant.
As mass and height of a body increases, the acceleration due to gravity will also increase.
b. .Silver has a lower activity than hydrogen and cannot replace it
Explanation:
The reaction between silver and water cannot proceed because Ag has a lower activity than hydrogen in water.
H₂O + Ag → no reaction
- This reaction is referred to as as single displacement reaction.
- In this kind of reaction, one specie replaces another.
- The replacement of a metallic ion in solution by a metal atom higher in the activity series is the driving force for this reaction.
- Hydrogen is higher than silver and the activity series and will not be displaced by it.
- Therefore, no reaction will occur.
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The primary intermolecular force present in ethanol is hydrogen bonding<span>. There are three intermolecular forces that occur in </span>covalent<span> compounds: </span>Dipole-dipole forces<span>occur when polar molecules are attracted to one another</span>
Answer:
<u>Metallic Bond</u> <span>is described as electrons in a matrix of positively charged atoms.
Explanation:
Metallic bond is a type of electrostatic interactions between a positive charged metal atoms and a negatively charged electrons present in surrounding of metal atom. The strngth of the interactions depend upon the number of electrons and the number of positive charges carried by the positive cations. Greater the number of positive charges greater is the strength of interactions. Therefore, it will effect its physical properties like increase in melting and boiling points.</span>
