Answer:
B and C
Explanation:
powder dissolve faster than particles
the higher the temperature the faster the dissolving process
Answer : First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst
Explanation : Measuring the time taken for the liquid to become clear when X and Y were mixed together will give an assumption about the reaction time and the rate of reaction.
Then same measurement should be done when the substance A is added to the liquid of X and Y mixture. If there is a fast reaction that occurs when A is added to the reaction mixture then it can be concluded that A acts as an catalyst for mixing X with Y. Also, by comparing the reaction rates of both the reaction it can be easily concluded that A was a catalyst or not.
The force of the swing.
Hoped I helped, and please tell me if I am wrong.
Nickel metal reacts with cadmium(II) nitrate reacts to produce cadmium metal and nickel(Il) nitrate Write the reaction equation on your scratch paper before answering this question. For this reaction Ni is the reducing agent and gains electrons_ Cd2' is the oxidizing agent and it loses electrons Cd?" is the reducing agent and it loses electrons Cd2" is the oxidizing agent and it gains electrons Ni is the oxidizing agent and it loses electrons
Answer:
The over all reaction will be, Fe+CuSO4=======>FeSO4 +Cu. The blue colour of copper sulphate will gradually disappear and at the end of the reaction, the solution will attain a pale green colour due to the formation of Ferrous ion
