Answer:
The mass of 3.5 moles of Ca is 140 g to two significant figures.
Explanation:
Best* and are there answer choic
Igneous rocks metamorphic rocks and sedimentary rocks
Answer: cations together in a sea of electrons
Explanation:
Metallic bonding is the type of chemical bonding occurs between the atoms of a metals. In this type of bonding arises due to electrostatic interaction between the electron cloud of de-localized electrons with positively charges metal ions called as cations.
These de-localized electrons are the valence electrons of metal atoms which are shared between them.
In ionic bonding , the cations are attracted to anions where cations are formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Water is made of only one molecule which can be chemically separated into hydrogen and oxygen. The answer is D.
