egg shells
CaCO2 is not a valid chemical formula. The correct formula is CaCO3, which represents calcium carbonate. It is a common compound found in rocks, shells, and pearls, while CaCO2 does not exist as a known compound in chemistry.
There are three oxygen atoms in CaCO2. This can be determined by looking at the formula of calcium carbonate (CaCO3) and noting that there is one less oxygen atom in the given compound.
Perhaps you mean CaCO3 - that's calcium carbonate. CaCO2 doesn't seem to be a common compound.
The chemical formula of household ammonia is NH3.
bleach and a household cleaner
a toaster is a common household item that has the chemical NaCI
Table salt is the household item that has the chemical name sodium chloride.
CaCo2 Does NOT erxist. If you means calcium carbonate the formula is 'CaCO3'. As given ;- Ca is one atom of calcium Co2 is two atoms of cobalt. Calcium carbonate (CaCO3) is a compound. It is a combination of '- 1 x calcium 1 x carbon 3 x oxygen . NB When writing chemical symbols/formulae, a single letter symbol is ALWAYS a CAPITAL letter. A two letter symbols is writtem , first letter is a capital letter, and the second letter is small/lower case. Hence 'Ca' is calcium and 'Co' is cobalt.
Cooking involves chemical changes.
No such substance as 'CaCo2'. Do you mean calcium carbonate, in which case the formula is 'CaCO3'? or do you mean an alloy(mixture) of 1 part calcium(Ca) to 2 parts cobalt(Co)?
Vinegar is the common household chemical that is a solution of acetic acid. It is used for cooking, cleaning, and various other household purposes.
ducks