B. Chocolate
C. Lactase
D. Orange juice
the any four ways in which a chemical equipment can be more informative are 1 colour change2 change of temperature 3 evolution of gas 4 production of n odar
Explanation:
if the answer is correct mark me as brain list
Answer:
explained below.
Explanation:
World war 1 leads to suffer the Americans people a lot .
Young men were forced to go for war which leads to the deplete the financial condition of the house hold. Industry starts to suffer a lot as most of the people who were working has to go for war and man power decreases.
Which leads women to come out of there houses and took job for them so, that they can full fill there needs which starts the new era where woman also start working with men.
Answer:
i) increase
ii) decrease
iii) remain the same
iv) No, because it dissociates completely.
Explanation:
On a 10-fold dilution of a weak acid, the pH will increase because the concentration of hydrogen ions will decrease thereby increasing the pH to close to that of water.
On a 10-fold dilution of a weak base, the pH will decrease due to the removal of hydroxide ions from the solution. This results in the solution having a H closer to that of water.
If one adds a very small amount of strong base to a buffered solution, the pH will remain constant because a buffer solution acts to withstand any change to its pH on the addition of small quantities of either an acid or a base.
A buffer solution cannot be made with a strong acid because thy undergo complete dissociation. Therefore, any small addition of base or acid will result in very large changes in the pH of the solution. A buffer solution is made with a weak acid and its conjugate base or a weak base and its conjugate acid.
Fe+Cl2-> FeCl2