A binary compound of oxygen with another element is called oxide. An oxide is a binary compound of oxygen and another element. Oxygen combines with metals and non-metals to form respective oxides.
Answer:
The number of electrons, in turn, determines the chemical properties of the atom. Protons contribute to the mass of an atom and provide the positive charge to the nucleus. The number of protons also determines the identity of the element
Ammonia is the base out of the 4
Answer: The sample that contains the greater number of molecules is water.
Explanation: To calculate the number of molecules, it is used the Avogadro's number (
particles/molecules). So, considering that the mass to water and carbon dioxide is 1g (it can be any other number), the relationship between moles and molar weight is:
![moles =\frac{mass}{molar weight}](https://tex.z-dn.net/?f=moles%20%3D%5Cfrac%7Bmass%7D%7Bmolar%20weight%7D)
To water:
= 0.05 moles.
Therefore,
1 mol ----
molecules
0.05 moles ---- x
x =
molecules of water.
To carbon dioxide:
= 0.02 moles.
Therefore,
1 mol ----
molecules
0.02 moles ---- y
y =
molecules of carbon dioxide.