5.
6.
7.
9.
10.
I have not understood these questions plz help.
Answers
5] silver nitrate
6] magnesium and oxygen
7] Ca(SO)4
8] a) a monoatomic ion has only single atom while polyatomic ion consists of several atoms bonded to each other.
b) mixtures are heterogeneous forms of matter and are composed of variable proportions of molecules of atoms while compounds are a homogeneous forms of matter their constituent atoms are always in fixed proportions
c) a formula represents a molecule of an element or compound where as chemical equation represents a chemical change in which reactants undergoes change to form new products
9] Bromine is a element , gold dust is an
element, distilled water is an compound , ink is a mixture , magneaium chloride is a compound , Honey is a mixture
10] A balanced chemical equation is a chemical reaction in which the no of atoms of each
elementin the reaction and the total charge is same for both the reactants and products .
EXAMPLES : 2Fe2O3 + C -------> Fe + 3CO2
Answer:
Explanation:
5] silver nitrate
6] magnesium and oxygen
7] Ca(SO)4
8] a) a monoatomic ion has only single atom while polyatomic ion consists of several atoms bonded to each other.
b) mixtures are heterogeneous forms of matter and are composed of variable proportions of molecules of atoms while compounds are a homogeneous forms of matter their constituent atoms are always in fixed proportions
c) a formula represents a molecule of an element or compound where as chemical equation represents a chemical change in which reactants undergoes change to form new products
9] Bromine is a element , gold dust is an
element, distilled water is an compound , ink is a mixture , magneaium chloride is a compound , Honey is a mixture
10] A balanced chemical equation is a chemical reaction in which the no of atoms of each
elementin the reaction and the total charge is same for both the reactants and products .
EXAMPLES : 2Fe2O3 + C -------> Fe + 3CO2