B. Metallic
C. Polar covalent
D. Nonpolar covalent
Answer:
Metallic
Explanation:
Iron is a metal
a. True
b. False
Answer: True
Explanation: An ionic bond is formed when an element completely transfers its valence electron to another element.
Electronegativity is defined as the property of an element to attract a shared pair of electron towards itself.
The element which donates the electron is known as electropositive element and the element which accepts the electrons is known as electronegative element.
This bond is formed between a electropositive metal and a electronegative non-metal .
Ionic bonds result from high electronegativity differences. True.
Ionic bonds result from high electronegativity differences. True. An ionic bond is formed when one atom, usually a metal, transfers one or more electrons to another atom, typically a nonmetal, resulting in the formation of ions with opposite charges. Electronegativity is the tendency of an atom to attract a shared pair of electrons in a covalent bond. When there is a high electronegativity difference between two atoms, one atom will strip electrons away from the other, leading to the formation of ionic bonds.
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chlorine gas
potassium chloride
potassium and chlorine
Answer : The correct option is potassium and chlorine.
Explanation :
Mixture : It is a substance which is made by the combination of two or more things in such a way there is no chemical reaction occurs.
For example : Sand and water, oil and water, milk and chocolate, etc.
Explanation:
When water is collected from vapour form to liquid form then this process is known as condensation.
For example, water evaporated from the atmosphere reaches to the clouds and it gets converted into liquid form and again reaches to Earth in the form of rain.
Thus, we can conclude that process in which water vapor turns to liquid is called condensation.
Gases, fluids, and other solids in contact with a moving object will produce heat flow due to friction. This is called heat transfer where heat energy is transferred from the high to low.