Ques 1.The substances you start with is called ______ and after the chemical change, what is
formed is called the _______.
A)reactants, products
B)reactants , gases
C)element , products
D)element , compounds
Ques 2. The substance that initially involved in a chemical reaction is called a reactant.
A)True
BFalse
Ques 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)True
B)False
Ques 4. What is the chemical formula of Potassium?
A)K
B)Na
C)Ca
D)Mg
Ques5. The new substances produced in a reaction are called as_____________.
A)products
B)reactants
C)catalyst
D)none of these
Ques6.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 chloride
E) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride
F) Sodium + Water → Sodium hydroxide + Hydrogen
Answers
Answered by
0
Answer:
The substances that go into achemical reaction are called thereactants, and the substances produced at the end of thereaction are known as theproducts.
Answered by
1
Answer:
1. (A) Reactants, Products
2. (A) True
3. (B) False
4. (A) K
5. (B) Reactants
6. Translate the sentence into equation form :
6Answer is in the Attachment!
Explanation:
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