4. When zinc reacts with hydrochloric acid, the following reaction takes place. i. Zn + HCl → ZnCl2 + H2 a. Name the reactants and products in this reaction. b. This equation is already balanced. Do you agree? Why or why not? c. How would you balance the equation given below N2 + H2 → NH3 5. When iron and sulphur are mixed together, they form a mixture. When the mixture of iron and sulphur is heated, a black compound is formed. a. How are compounds different from mixtures? b. In the example shown above, suggest and explain one way in which you can show the presence of iron only in the mixture.
Answers
Answer:
1) (a)Reactants are Zinc and Hydrochloric acid and products are Zinc Chloride and hydrogen gas.
(b)This equation is not balanced as the mass of Reactants does not match mass of products.
BALANCED EQUATION- ZN + 2 HCL= ZNCL2 + H2
(c)
N2+ 3H2=NH3
Hope this helps.
Plz mark me as brainliest
Answer:
pl mark as brainliest
Explanation:
a)Zn+HCl gives ZnCl2 + H2
reactants= Zn and HCl
products=ZnCl2 + H2
b) No, its not balanced because the left hand side and the right hand side are not balanced. The no.of atoms are not equal in the reactants and the products.
c)We can balance the equation by balancing the no. of atoms at RHS and LHS.
ans.N2+ 3H2 gives 2NH3 this is the balanced equaton.
ans. compounds are diff. from mixtures as they cannot be separated physically. while the Mixtures can be separated by filtration or attraction of magnet or even by evaporation.
most compounds are inseparable,some are separated by heating(decomposition) or by light or by electricity.
ans.the presence of iron can be shown only in the mixture as in a compound, the elements lose their properties to form new products. hence we can separate the iron filings by attracting them from a magnet.