Ques 1.The substances you start with is called ______ and after the chemical change, what is formed is called the _______.A)reactants, productsB)reactants , gasesC)element , productsD)element , compoundsQues 2. The substance that initially involved in a chemical reaction is called a reactant.A)TrueBFalseQues 3. State true or false.In a chemical equation, the products are written on the left-hand side and the reactants on the right-hand side with an arrow in between.A)TrueB)FalseQues 4. What is the chemical formula of Potassium?A)KB)NaC)CaD)MgQues5. The new substances produced in a reaction are called as_____________.A)productsB)reactantsC)catalystD)none of theseQues6.Translate the sentence into equation form:A)Hydrogen gas combines with nitrogen to form ammonia.B) Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.C)Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.D) Hydrogen + Chlorine → Hydrogen chlorideE) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chlorideF) Sodium + Water → Sodium hydroxide + Hydrogen

Ques 1.The substances you start with is called ______ and after the ch

1.	Ques 1.The substances you start with is called ______ and after the chemical change, what is formed is called the _______.A)reactants, productsB)reactants , gasesC)element , productsD)element , compoundsQues 2. The substance that initially involved in a chemical reaction is called a reactant.A)TrueBFalseQues 3. State true or false.In a chemical equation, the products are written on the left-hand side and the reactants on the right-hand side with an arrow in between.A)TrueB)FalseQues 4. What is the chemical formula of Potassium?A)KB)NaC)CaD)MgQues5. The new substances produced in a reaction are called as_____________.A)productsB)reactantsC)catalystD)none of theseQues6.Translate the sentence into equation form:A)Hydrogen gas combines with nitrogen to form ammonia.B) Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.C)Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.D) Hydrogen + Chlorine → Hydrogen chlorideE) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chlorideF) Sodium + Water → Sodium hydroxide + Hydrogen
Answer» The substances that GO into achemical reaction are CALLED thereactants, and the substances PRODUCED at the END of thereaction are known as theproducts.