Top answers

What is an acid?

An acid is a substance which releases hydrogen ions (protons) when added to water. pH values of less than 7 are considered acidic, with 1 indicating it is a strong acid.
EW
Answered by Ellie W. • Chemistry tutor
4295 Views

Chlorine is in group 7. What is the charge on its ions, and is the charge positive or negative?

Chlorine is in Group 7 of the periodic table. Therefore a chlorine atom has 7 electrons in its outer shell. this atom needs one more electron to form an ion with a full outer shell. Hence the ion formed will...
TB
Answered by Tom B. • Chemistry tutor
117075 Views

What is condensation polymerisation ?

Polymerisation is defined as the process of bringing individual molecules, called monomers, together to form chains of these molecules called polymers. When this process is done with molecules containing dou...
KP
Answered by Kishen P. • Chemistry tutor
4296 Views

Calculate the relative molecular mass of CaCO3. (relative atomic mass (Ar): C= 12, Ca= 40, O= 16)

Number of atoms Ca x1 => 40x 1= 40 C x 1 => 12x1 = 12 O x 3= 16 x 3= 48CaCO3 RMM= 40 + 12 + 48= 100
RM
Answered by Roxanne M. • Chemistry tutor
32078 Views

What is a covalent bond?

A covalent bond in an intramolecular bond which occurs when a pair of electrons is shared between two elements, usually two non-metals. The electrons shared are in the outer shell of the atom of each element...
RP
Answered by Rebecca P. • Chemistry tutor
4592 Views