Answer:
Li(s) + H2O(l) -----> LiOH(aq) + H2(g)
Ca(s) + 2H2O(l) ---------------> Ca(OH)2(aq) + H2(g)
Explanation:
Metals react with water to yield the metal hydroxide and hydrogen gas as shown in the answer above.
The reaction equations were balanced, the number of atoms of each element on both side of the reaction equation is exactly the same.
This is the way to write a balanced reaction equation for the species shown in the question.
A mole of any element is equal to avogadro's number which is equivalent to 6.0221409e+23, that is 6.0221409e+23 molecules or atoms per mole.In this case, we are given with 9.87 sample which when multiplied to Avogadro's number is equal to <span>5.943853e+24 atoms.</span>
Answer:
hi sorry I need the points to ask a question myself please dont delete this until I say I asked my question cus if u do it before it will remove the, thanks bye.
Explanation:
thx, and sorry if I sound rude its just I REALLY need the points. (sorry for the caps)
Explanation:
A chemical property is defined as the property that brings changes in chemical composition of a substance.
For example, flammability, combustion, reactivity, electronegativity etc are allchemical properties.
On the other hand, a property that does not bring any change in chemical composition of a substance is known as a physical property.
For example, shape, size, mass, density etc are all physical properties.
Thus, we can conclude that these may all be classified as chemical properties of a substance.
Answer:
They are made in the Heavens, in Stars.
Explanation: