Answer:
Pascal is the most common unit for measuring pressure
The average sea level pressure is 1013 mbar
Answer:
The rate of dissolution for a solid solute when cease of stirring is typically: B. It is decreased
Explanation:
The rate of dissolution for a solid solute decreases when you stop stirring it.
Answer:
explanation
Explanation:
Magnesium-
a. Solid
b. Metal
c. Natural
d. Mg
e. Alkaline earth metals
Ill answer the rest if you can mark brainliest
Answer:
False
Explanation:
Molecules of the same substance are made up of the same type of atoms and look exactly alike.
Hence, if I have two molecules of methane having exactly the same atoms of carbon and hydrogen,the both are indistinguishable from each other based on appearance.
Hence all molecules of methane are exactly alike if they are composed of atoms of the same isotope of hydrogen and carbon.

Aluminum ions have a charge of +3. This means that the atoms have three more protons than electrons. In order to add electrons to aluminum ions, the purification process therefore requires a large amount of electricity.
Uncharged Aluminum atom must need to lose it's electrons,in order to form the bond with oxygen which has vacant orbitals
ion
atom that has a positive or negative charge because it lost or gained one or more electrons
chemical bond
the attractive force that holds atoms or ions together
ionic bond
a chemical bond in which one atom loses an electron and the other atom gains electrons to form ions
chemical formula
a combination of chemical symbols and numbers to represent a substance
covalent bond
bond formed by the sharing of electrons between atoms
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